131790904 has 32 divisors (see below), whose sum is σ = 284457600. Its totient is φ = 56072160.

The previous prime is 131790887. The next prime is 131790907. The reversal of 131790904 is 409097131.

It is a self number, because there is not a number n which added to its sum of digits gives 131790904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131790907) 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, 682 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (8889300).

Almost surely, 2^131790904 is an apocalyptic number.

131790904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131790904 is an abundant number, since it is smaller than the sum of its proper divisors (152666696).

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

131790904 is a wasteful number, since it uses less digits than its factorization.

131790904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17083 (or 17079 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 131790904 is about 11480.0219511985. The cubic root of 131790904 is about 508.8953458271.

The spelling of 131790904 in words is "one hundred thirty-one million, seven hundred ninety thousand, nine hundred four".