131092520 has 32 divisors (see below), whose sum is σ = 317648520. Its totient is φ = 48403200.

The previous prime is 131092519. The next prime is 131092523. The reversal of 131092520 is 25290131.

It can be written as a sum of positive squares in 4 ways, for example, as 38663524 + 92428996 = 6218^2 + 9614^2 .

It is not an unprimeable number, because it can be changed into a prime (131092523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125531 + ... + 126570.

Almost surely, 2^131092520 is an apocalyptic number.

131092520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131092520 is an abundant number, since it is smaller than the sum of its proper divisors (186556000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131092520 is a wasteful number, since it uses less digits than its factorization.

131092520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252125 (or 252121 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 131092520 is about 11449.5641838456. The cubic root of 131092520 is about 507.9948436040.

The spelling of 131092520 in words is "one hundred thirty-one million, ninety-two thousand, five hundred twenty".