138815074 has 8 divisors (see below), whose sum is σ = 217275840. Its totient is φ = 66389796.

The previous prime is 138815069. The next prime is 138815101. The reversal of 138815074 is 470518831.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1508814 + ... + 1508905.

It is an arithmetic number, because the mean of its divisors is an integer number (27159480).

Almost surely, 2^138815074 is an apocalyptic number.

138815074 is a deficient number, since it is larger than the sum of its proper divisors (78460766).

138815074 is a wasteful number, since it uses less digits than its factorization.

138815074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017744.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 138815074 is about 11781.9809030570. The cubic root of 138815074 is about 517.7803240590.

The spelling of 138815074 in words is "one hundred thirty-eight million, eight hundred fifteen thousand, seventy-four".