137972972 has 12 divisors (see below), whose sum is σ = 245411376. Its totient is φ = 67855440.

The previous prime is 137972959. The next prime is 137973029. The reversal of 137972972 is 279279731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282488 + ... + 282975.

It is an arithmetic number, because the mean of its divisors is an integer number (20450948).

Almost surely, 2^137972972 is an apocalyptic number.

It is an amenable number.

137972972 is a deficient number, since it is larger than the sum of its proper divisors (107438404).

137972972 is a wasteful number, since it uses less digits than its factorization.

137972972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565528 (or 565526 counting only the distinct ones).

The product of its digits is 333396, while the sum is 47.

The square root of 137972972 is about 11746.1896800622. The cubic root of 137972972 is about 516.7311860230.

The spelling of 137972972 in words is "one hundred thirty-seven million, nine hundred seventy-two thousand, nine hundred seventy-two".