138895075 has 12 divisors (see below), whose sum is σ = 187887528. Its totient is φ = 101014400.

The previous prime is 138895067. The next prime is 138895093. The reversal of 138895075 is 570598831.

It is not a de Polignac number, because 138895075 - 2³ = 138895067 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, 252262 + ... + 252811.

It is an arithmetic number, because the mean of its divisors is an integer number (15657294).

Almost surely, 2^138895075 is an apocalyptic number.

138895075 is a deficient number, since it is larger than the sum of its proper divisors (48992453).

138895075 is a wasteful number, since it uses less digits than its factorization.

138895075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505094 (or 505089 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 138895075 is about 11785.3754713204. The cubic root of 138895075 is about 517.8797728857.

The spelling of 138895075 in words is "one hundred thirty-eight million, eight hundred ninety-five thousand, seventy-five".