131807892 has 12 divisors (see below), whose sum is σ = 307551776. Its totient is φ = 43935960.

The previous prime is 131807891. The next prime is 131807909. The reversal of 131807892 is 298708131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 131807892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131807891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5491984 + ... + 5492007.

Almost surely, 2^131807892 is an apocalyptic number.

131807892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131807892 is an abundant number, since it is smaller than the sum of its proper divisors (175743884).

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

131807892 is a wasteful number, since it uses less digits than its factorization.

131807892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10983998 (or 10983996 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 131807892 is about 11480.7618214124. The cubic root of 131807892 is about 508.9172106206.

The spelling of 131807892 in words is "one hundred thirty-one million, eight hundred seven thousand, eight hundred ninety-two".