137731864 has 16 divisors (see below), whose sum is σ = 258607800. Its totient is φ = 68769792.

The previous prime is 137731859. The next prime is 137731873. The reversal of 137731864 is 468137731.

It is a congruent number.

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, 5737 + ... + 17560.

Almost surely, 2^137731864 is an apocalyptic number.

It is an amenable number.

137731864 is a deficient number, since it is larger than the sum of its proper divisors (120875936).

137731864 is a wasteful number, since it uses less digits than its factorization.

137731864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24042 (or 24038 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The square root of 137731864 is about 11735.9219492974. The cubic root of 137731864 is about 516.4300143173.

The spelling of 137731864 in words is "one hundred thirty-seven million, seven hundred thirty-one thousand, eight hundred sixty-four".