137504732 has 12 divisors (see below), whose sum is σ = 240727200. Its totient is φ = 68725536.

The previous prime is 137504723. The next prime is 137504761. The reversal of 137504732 is 237405731.

It is a super-3 number, since 3×137504732³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8813 + ... + 18779.

It is an arithmetic number, because the mean of its divisors is an integer number (20060600).

Almost surely, 2^137504732 is an apocalyptic number.

It is an amenable number.

137504732 is a deficient number, since it is larger than the sum of its proper divisors (103222468).

137504732 is a wasteful number, since it uses less digits than its factorization.

137504732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13420 (or 13418 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 137504732 is about 11726.2411709806. The cubic root of 137504732 is about 516.1459785688.

Subtracting 137504732 from its reverse (237405731), we obtain a palindrome (99900999).

The spelling of 137504732 in words is "one hundred thirty-seven million, five hundred four thousand, seven hundred thirty-two".