131,821 in words
131,821
one hundred thirty-one thousand eight hundred twenty-one
131,821 is written one hundred thirty-one thousand eight hundred twenty-one.
Ways to write it
- As an ordinal
- one hundred thirty-one thousand eight hundred twenty-first
- Expanded form
- 100,000 + 30,000 + 1,000 + 800 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 1 | 100,000 |
| ten thousands | 3 | 30,000 |
| thousands | 1 | 1,000 |
| hundreds | 8 | 800 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 61, 2,161 and 131,821 (4 factors)
- First 10 multiples
- 131,821, 263,642, 395,463, 527,284, 659,105, 790,926, 922,747, 1,054,568, 1,186,389, 1,318,210
- Square
- 131,821 × 131,821 = 17,376,776,041
- Square root
- ≈ 363.07
- Sum of the digits
- 1 + 3 + 1 + 8 + 2 + 1 = 16
- Rounded to the nearest 10
- 131,820
- Rounded to the nearest 100
- 131,800
- Rounded to the nearest 1000
- 132,000
- Number before
- 131,820
- Number after
- 131,822
- In binary
100000001011101101
Quick check
What number comes just after 131,821?
Show the answer
131,822
Is 131,821 even or odd?
Show the answer
Odd
What is 131,821 + 10?
Show the answer
131,831
Practice with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 131,821 in words?
131,821 is written "one hundred thirty-one thousand eight hundred twenty-one".
Is 131,821 a prime number?
No. 131,821 is a composite number, because it has more than two factors.
What are the factors of 131,821?
The factors of 131,821 are 1, 61, 2,161 and 131,821.