131895904 has 48 divisors (see below), whose sum is σ = 299593728. Its totient is φ = 55988352.

The previous prime is 131895817. The next prime is 131895923. The reversal of 131895904 is 409598131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21217 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (6241536).

Almost surely, 2^131895904 is an apocalyptic number.

131895904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131895904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149796864).

131895904 is an abundant number, since it is smaller than the sum of its proper divisors (167697824).

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

131895904 is a wasteful number, since it uses less digits than its factorization.

131895904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627 (or 5619 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 131895904 is about 11484.5942026699. The cubic root of 131895904 is about 509.0304584066.

The spelling of 131895904 in words is "one hundred thirty-one million, eight hundred ninety-five thousand, nine hundred four".