131955804 has 36 divisors (see below), whose sum is σ = 345911384. Its totient is φ = 43984944.

The previous prime is 131955799. The next prime is 131955821. The reversal of 131955804 is 408559131.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66907 + ... + 68850.

Almost surely, 2^131955804 is an apocalyptic number.

It is an amenable number.

131955804 is an abundant number, since it is smaller than the sum of its proper divisors (213955580).

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

131955804 is a wasteful number, since it uses less digits than its factorization.

131955804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135776 (or 135762 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 131955804 is about 11487.2017480325. The cubic root of 131955804 is about 509.1075047968.

The spelling of 131955804 in words is "one hundred thirty-one million, nine hundred fifty-five thousand, eight hundred four".