131144992 has 48 divisors (see below), whose sum is σ = 296503200. Its totient is φ = 56471040.

The previous prime is 131144963. The next prime is 131145029. The reversal of 131144992 is 299441131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3117 + ... + 16492.

It is an arithmetic number, because the mean of its divisors is an integer number (6177150).

Almost surely, 2^131144992 is an apocalyptic number.

It is an amenable number.

131144992 is an abundant number, since it is smaller than the sum of its proper divisors (165358208).

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

131144992 is a wasteful number, since it uses less digits than its factorization.

131144992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19649 (or 19641 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 131144992 is about 11451.8553955243. The cubic root of 131144992 is about 508.0626124078.

The spelling of 131144992 in words is "one hundred thirty-one million, one hundred forty-four thousand, nine hundred ninety-two".