138713732 has 24 divisors (see below), whose sum is σ = 249263616. Its totient is φ = 67511808.

The previous prime is 138713717. The next prime is 138713741. The reversal of 138713732 is 237317831.

It is a junction number, because it is equal to n+sod(n) for n = 138713692 and 138713701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34373 + ... + 38195.

It is an arithmetic number, because the mean of its divisors is an integer number (10385984).

Almost surely, 2^138713732 is an apocalyptic number.

It is an amenable number.

138713732 is a deficient number, since it is larger than the sum of its proper divisors (110549884).

138713732 is a wasteful number, since it uses less digits than its factorization.

138713732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067 (or 4065 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 138713732 is about 11777.6793979120. The cubic root of 138713732 is about 517.6542914734.

The spelling of 138713732 in words is "one hundred thirty-eight million, seven hundred thirteen thousand, seven hundred thirty-two".