138192875 has 16 divisors (see below), whose sum is σ = 172979040. Its totient is φ = 110224800.

The previous prime is 138192863. The next prime is 138192913. The reversal of 138192875 is 578291831.

It is not a de Polignac number, because 138192875 - 2¹² = 138188779 is a prime.

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, 45917 + ... + 48833.

It is an arithmetic number, because the mean of its divisors is an integer number (10811190).

Almost surely, 2^138192875 is an apocalyptic number.

138192875 is a deficient number, since it is larger than the sum of its proper divisors (34786165).

138192875 is an equidigital number, since it uses as much as digits as its factorization.

138192875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311 (or 3301 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 138192875 is about 11755.5465632186. The cubic root of 138192875 is about 517.0055644539.

The spelling of 138192875 in words is "one hundred thirty-eight million, one hundred ninety-two thousand, eight hundred seventy-five".