131238932 has 24 divisors (see below), whose sum is σ = 252219072. Its totient is φ = 59256000.

The previous prime is 131238911. The next prime is 131238941. The reversal of 131238932 is 239832131.

It is a congruent number.

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, 3233 + ... + 16520.

It is an arithmetic number, because the mean of its divisors is an integer number (10509128).

Almost surely, 2^131238932 is an apocalyptic number.

It is an amenable number.

131238932 is a deficient number, since it is larger than the sum of its proper divisors (120980140).

131238932 is a wasteful number, since it uses less digits than its factorization.

131238932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19919 (or 19917 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 131238932 is about 11455.9561800838. The cubic root of 131238932 is about 508.1838929584.

The spelling of 131238932 in words is "one hundred thirty-one million, two hundred thirty-eight thousand, nine hundred thirty-two".