365138138 has 32 divisors (see below), whose sum is σ = 593464320. Its totient is φ = 167856640.

The previous prime is 365138113. The next prime is 365138149. The reversal of 365138138 is 831831563.

365138138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382670 + ... + 383622.

It is an arithmetic number, because the mean of its divisors is an integer number (18545760).

Almost surely, 2^365138138 is an apocalyptic number.

365138138 is a deficient number, since it is larger than the sum of its proper divisors (228326182).

365138138 is a wasteful number, since it uses less digits than its factorization.

365138138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222.

The product of its digits is 51840, while the sum is 38.

The square root of 365138138 is about 19108.5880692426. The cubic root of 365138138 is about 714.7470949320.

The spelling of 365138138 in words is "three hundred sixty-five million, one hundred thirty-eight thousand, one hundred thirty-eight".