131873688 has 48 divisors (see below), whose sum is σ = 362501880. Its totient is φ = 43300224.

The previous prime is 131873669. The next prime is 131873713. The reversal of 131873688 is 886378131.

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, 8845 + ... + 18492.

Almost surely, 2^131873688 is an apocalyptic number.

131873688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131873688 is an abundant number, since it is smaller than the sum of its proper divisors (230628192).

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

131873688 is a wasteful number, since it uses less digits than its factorization.

131873688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27416 (or 27409 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 131873688 is about 11483.6269531886. The cubic root of 131873688 is about 509.0018771409.

The spelling of 131873688 in words is "one hundred thirty-one million, eight hundred seventy-three thousand, six hundred eighty-eight".