131019872 has 24 divisors (see below), whose sum is σ = 259686000. Its totient is φ = 65067904.

The previous prime is 131019851. The next prime is 131019881. The reversal of 131019872 is 278910131.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8972 + ... + 18507.

It is an arithmetic number, because the mean of its divisors is an integer number (10820250).

Almost surely, 2^131019872 is an apocalyptic number.

It is an amenable number.

131019872 is a deficient number, since it is larger than the sum of its proper divisors (128666128).

131019872 is a wasteful number, since it uses less digits than its factorization.

131019872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27638 (or 27630 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 131019872 is about 11446.3912216908. The cubic root of 131019872 is about 507.9009871716.

The spelling of 131019872 in words is "one hundred thirty-one million, nineteen thousand, eight hundred seventy-two".