131372520 has 64 divisors (see below), whose sum is σ = 402520320. Its totient is φ = 34285824.

The previous prime is 131372519. The next prime is 131372543. The reversal of 131372520 is 25273131.

It is a super-2 number, since 2×131372520² = 34517478022300800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6007 + ... + 17286.

It is an arithmetic number, because the mean of its divisors is an integer number (6289380).

Almost surely, 2^131372520 is an apocalyptic number.

131372520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131372520 is an abundant number, since it is smaller than the sum of its proper divisors (271147800).

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

131372520 is a wasteful number, since it uses less digits than its factorization.

131372520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23354 (or 23350 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 131372520 is about 11461.7852012677. The cubic root of 131372520 is about 508.3562611415.

The spelling of 131372520 in words is "one hundred thirty-one million, three hundred seventy-two thousand, five hundred twenty".