138106075 has 12 divisors (see below), whose sum is σ = 174484368. Its totient is φ = 108399200.

The previous prime is 138106063. The next prime is 138106097. The reversal of 138106075 is 570601831.

It is not a de Polignac number, because 138106075 - 2⁵ = 138106043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50791 + ... + 53440.

It is an arithmetic number, because the mean of its divisors is an integer number (14540364).

Almost surely, 2^138106075 is an apocalyptic number.

138106075 is a deficient number, since it is larger than the sum of its proper divisors (36378293).

138106075 is a wasteful number, since it uses less digits than its factorization.

138106075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104294 (or 104289 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 138106075 is about 11751.8541090332. The cubic root of 138106075 is about 516.8972967352.

The spelling of 138106075 in words is "one hundred thirty-eight million, one hundred six thousand, seventy-five".