138960315 has 48 divisors (see below), whose sum is σ = 268369920. Its totient is φ = 66044160.

The previous prime is 138960253. The next prime is 138960323. The reversal of 138960315 is 513069831.

It is a happy number.

138960315 is a `hidden beast` number, since 1 + 38 + 9 + 603 + 15 = 666.

138960315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138960315 - 2⁶ = 138960251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138960315.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12870 + ... + 21060.

It is an arithmetic number, because the mean of its divisors is an integer number (5591040).

Almost surely, 2^138960315 is an apocalyptic number.

138960315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138960315 is a deficient number, since it is larger than the sum of its proper divisors (129409605).

138960315 is a wasteful number, since it uses less digits than its factorization.

138960315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244 (or 8241 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 138960315 is about 11788.1429835237. The cubic root of 138960315 is about 517.9608441256.

The spelling of 138960315 in words is "one hundred thirty-eight million, nine hundred sixty thousand, three hundred fifteen".