138375358 has 12 divisors (see below), whose sum is σ = 228148200. Its totient is φ = 62897780.

The previous prime is 138375317. The next prime is 138375371. The reversal of 138375358 is 853573831.

138375358 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285658 + ... + 286141.

It is an arithmetic number, because the mean of its divisors is an integer number (19012350).

Almost surely, 2^138375358 is an apocalyptic number.

138375358 is a deficient number, since it is larger than the sum of its proper divisors (89772842).

138375358 is a wasteful number, since it uses less digits than its factorization.

138375358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571823 (or 571812 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The square root of 138375358 is about 11763.3055728396. The cubic root of 138375358 is about 517.2330321137.

The spelling of 138375358 in words is "one hundred thirty-eight million, three hundred seventy-five thousand, three hundred fifty-eight".