137438975 has 24 divisors (see below), whose sum is σ = 177176160. Its totient is φ = 105633920.

The previous prime is 137438971. The next prime is 137438981. The reversal of 137438975 is 579834731.

It is not a de Polignac number, because 137438975 - 2² = 137438971 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137438971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212102 + ... + 212748.

It is an arithmetic number, because the mean of its divisors is an integer number (7382340).

Almost surely, 2^137438975 is an apocalyptic number.

137438975 is a deficient number, since it is larger than the sum of its proper divisors (39737185).

137438975 is a wasteful number, since it uses less digits than its factorization.

137438975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 974 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 137438975 is about 11723.4369960349. The cubic root of 137438975 is about 516.0636889818.

The spelling of 137438975 in words is "one hundred thirty-seven million, four hundred thirty-eight thousand, nine hundred seventy-five".