131255500 has 24 divisors (see below), whose sum is σ = 286663104. Its totient is φ = 52502000.

The previous prime is 131255497. The next prime is 131255513. The reversal of 131255500 is 5552131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130756 + ... + 131755.

It is an arithmetic number, because the mean of its divisors is an integer number (11944296).

Almost surely, 2^131255500 is an apocalyptic number.

131255500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131255500 is an abundant number, since it is smaller than the sum of its proper divisors (155407604).

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

131255500 is a wasteful number, since it uses less digits than its factorization.

131255500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262530 (or 262518 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 131255500 is about 11456.6792745542. The cubic root of 131255500 is about 508.2052769495.

The spelling of 131255500 in words is "one hundred thirty-one million, two hundred fifty-five thousand, five hundred".