137765864 has 16 divisors (see below), whose sum is σ = 258521220. Its totient is φ = 68826880.

The previous prime is 137765861. The next prime is 137765893. The reversal of 137765864 is 468567731.

It can be written as a sum of positive squares in 2 ways, for example, as 101163364 + 36602500 = 10058^2 + 6050^2 .

It is not an unprimeable number, because it can be changed into a prime (137765861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4562 + ... + 17214.

Almost surely, 2^137765864 is an apocalyptic number.

It is an amenable number.

137765864 is a deficient number, since it is larger than the sum of its proper divisors (120755356).

137765864 is a wasteful number, since it uses less digits than its factorization.

137765864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14020 (or 14016 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 137765864 is about 11737.3704039704. The cubic root of 137765864 is about 516.4725055157.

The spelling of 137765864 in words is "one hundred thirty-seven million, seven hundred sixty-five thousand, eight hundred sixty-four".