138368204 has 24 divisors (see below), whose sum is σ = 261246048. Its totient is φ = 63745920.

The previous prime is 138368189. The next prime is 138368239. The reversal of 138368204 is 402863831.

It is a happy number.

138368204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30704 + ... + 34920.

It is an arithmetic number, because the mean of its divisors is an integer number (10885252).

Almost surely, 2^138368204 is an apocalyptic number.

It is an amenable number.

138368204 is a deficient number, since it is larger than the sum of its proper divisors (122877844).

138368204 is a wasteful number, since it uses less digits than its factorization.

138368204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865 (or 4863 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 138368204 is about 11763.0014877156. The cubic root of 138368204 is about 517.2241183183.

Subtracting from 138368204 its sum of digits (35), we obtain a square (138368169 = 11763²).

The spelling of 138368204 in words is "one hundred thirty-eight million, three hundred sixty-eight thousand, two hundred four".