137868738 has 32 divisors (see below), whose sum is σ = 317230080. Its totient is φ = 39128400.

The previous prime is 137868683. The next prime is 137868767. The reversal of 137868738 is 837868731.

137868738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4528 + ... + 17211.

It is an arithmetic number, because the mean of its divisors is an integer number (9913440).

Almost surely, 2^137868738 is an apocalyptic number.

137868738 is an abundant number, since it is smaller than the sum of its proper divisors (179361342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137868738 is a wasteful number, since it uses less digits than its factorization.

137868738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21902.

The product of its digits is 1354752, while the sum is 51.

The square root of 137868738 is about 11741.7519135775. The cubic root of 137868738 is about 516.6010288220.

The spelling of 137868738 in words is "one hundred thirty-seven million, eight hundred sixty-eight thousand, seven hundred thirty-eight".