131711928 has 32 divisors (see below), whose sum is σ = 329562000. Its totient is φ = 43866368.

The previous prime is 131711927. The next prime is 131711969. The reversal of 131711928 is 829117131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131711927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50398 + ... + 52946.

Almost surely, 2^131711928 is an apocalyptic number.

It is an amenable number.

131711928 is an abundant number, since it is smaller than the sum of its proper divisors (197850072).

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

131711928 is a wasteful number, since it uses less digits than its factorization.

131711928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711 (or 4707 counting only the distinct ones).

The product of its digits is 3024, while the sum is 33.

The square root of 131711928 is about 11476.5817210527. The cubic root of 131711928 is about 508.7936732827.

The spelling of 131711928 in words is "one hundred thirty-one million, seven hundred eleven thousand, nine hundred twenty-eight".