138364 has 6 divisors (see below), whose sum is σ = 242144. Its totient is φ = 69180.

The previous prime is 138349. The next prime is 138371. The reversal of 138364 is 463831.

138364 is digitally balanced in base 2, 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 as a sum of consecutive naturals, namely, 17292 + ... + 17299.

2¹³⁸³⁶⁴ is an apocalyptic number.

It is an amenable number.

138364 is a deficient number, since it is larger than the sum of its proper divisors (103780).

138364 is a wasteful number, since it uses less digits than its factorization.

138364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34595 (or 34593 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 138364 is about 371.9731173082. The cubic root of 138364 is about 51.7218880043.

The spelling of 138364 in words is "one hundred thirty-eight thousand, three hundred sixty-four".