137645874 has 12 divisors (see below), whose sum is σ = 298232766. Its totient is φ = 45881952.

The previous prime is 137645843. The next prime is 137645891. The reversal of 137645874 is 478546731.

137645874 is a `hidden beast` number, since 1 + 3 + 7 + 64 + 587 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 122877225 + 14768649 = 11085^2 + 3843^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3823479 + ... + 3823514.

Almost surely, 2^137645874 is an apocalyptic number.

137645874 is an abundant number, since it is smaller than the sum of its proper divisors (160586892).

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

137645874 is a wasteful number, since it uses less digits than its factorization.

137645874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7647001 (or 7646998 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 137645874 is about 11732.2578389669. The cubic root of 137645874 is about 516.3225178612.

The spelling of 137645874 in words is "one hundred thirty-seven million, six hundred forty-five thousand, eight hundred seventy-four".