137604 has 12 divisors (see below), whose sum is σ = 321104. Its totient is φ = 45864.

The previous prime is 137597. The next prime is 137623. The reversal of 137604 is 406731.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5722 + ... + 5745.

2¹³⁷⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

137604 is an abundant number, since it is smaller than the sum of its proper divisors (183500).

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

137604 is a wasteful number, since it uses less digits than its factorization.

137604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11474 (or 11472 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 137604 is about 370.9501314193. The cubic root of 137604 is about 51.6270154790.

It can be divided in two parts, 137 and 604, that added together give a triangular number (741 = T₃₈).

The spelling of 137604 in words is "one hundred thirty-seven thousand, six hundred four".