138333715 has 16 divisors (see below), whose sum is σ = 179712288. Its totient is φ = 101615616.

The previous prime is 138333703. The next prime is 138333721. The reversal of 138333715 is 517333831.

It is a happy number.

138333715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 138333715 - 2¹¹ = 138331667 is a prime.

It is a Duffinian 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, 7032 + ... + 18058.

It is an arithmetic number, because the mean of its divisors is an integer number (11232018).

Almost surely, 2^138333715 is an apocalyptic number.

138333715 is a deficient number, since it is larger than the sum of its proper divisors (41378573).

138333715 is a wasteful number, since it uses less digits than its factorization.

138333715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11238.

The product of its digits is 22680, while the sum is 34.

The square root of 138333715 is about 11761.5354014686. The cubic root of 138333715 is about 517.1811411400.

The spelling of 138333715 in words is "one hundred thirty-eight million, three hundred thirty-three thousand, seven hundred fifteen".