137405704 has 8 divisors (see below), whose sum is σ = 257635710. Its totient is φ = 68702848.

The previous prime is 137405669. The next prime is 137405707. The reversal of 137405704 is 407504731.

It can be written as a sum of positive squares in only one way, i.e., 136843204 + 562500 = 11698^2 + 750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (137405707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8587849 + ... + 8587864.

Almost surely, 2^137405704 is an apocalyptic number.

It is an amenable number.

137405704 is a deficient number, since it is larger than the sum of its proper divisors (120230006).

137405704 is a wasteful number, since it uses less digits than its factorization.

137405704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17175719 (or 17175715 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 137405704 is about 11722.0179150179. The cubic root of 137405704 is about 516.0220430060.

The spelling of 137405704 in words is "one hundred thirty-seven million, four hundred five thousand, seven hundred four".