138316874 has 16 divisors (see below), whose sum is σ = 211169376. Its totient is φ = 67938000.

The previous prime is 138316873. The next prime is 138316897. The reversal of 138316874 is 478613831.

It is not an unprimeable number, because it can be changed into a prime (138316873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23849 + ... + 29075.

It is an arithmetic number, because the mean of its divisors is an integer number (13198086).

Almost surely, 2^138316874 is an apocalyptic number.

138316874 is a deficient number, since it is larger than the sum of its proper divisors (72852502).

138316874 is a wasteful number, since it uses less digits than its factorization.

138316874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461.

The product of its digits is 96768, while the sum is 41.

The square root of 138316874 is about 11760.8194442394. The cubic root of 138316874 is about 517.1601527615.

The spelling of 138316874 in words is "one hundred thirty-eight million, three hundred sixteen thousand, eight hundred seventy-four".