138318352 has 20 divisors (see below), whose sum is σ = 268174800. Its totient is φ = 69111968.

The previous prime is 138318337. The next prime is 138318419. The reversal of 138318352 is 253813831.

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, 41583 + ... + 44785.

It is an arithmetic number, because the mean of its divisors is an integer number (13408740).

Almost surely, 2^138318352 is an apocalyptic number.

It is an amenable number.

138318352 is a deficient number, since it is larger than the sum of its proper divisors (129856448).

138318352 is a wasteful number, since it uses less digits than its factorization.

138318352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910 (or 5904 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 138318352 is about 11760.8822798292. The cubic root of 138318352 is about 517.1619948120.

The spelling of 138318352 in words is "one hundred thirty-eight million, three hundred eighteen thousand, three hundred fifty-two".