138865058 has 8 divisors (see below), whose sum is σ = 215016960. Its totient is φ = 67192740.

The previous prime is 138865049. The next prime is 138865117. The reversal of 138865058 is 850568831.

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, 1119818 + ... + 1119941.

It is an arithmetic number, because the mean of its divisors is an integer number (26877120).

Almost surely, 2^138865058 is an apocalyptic number.

138865058 is a deficient number, since it is larger than the sum of its proper divisors (76151902).

138865058 is a wasteful number, since it uses less digits than its factorization.

138865058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239792.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 138865058 is about 11784.1019174140. The cubic root of 138865058 is about 517.8424633864.

The spelling of 138865058 in words is "one hundred thirty-eight million, eight hundred sixty-five thousand, fifty-eight".