138875125125 has 32 divisors (see below), whose sum is σ = 252096234624. Its totient is φ = 67333392000.

The previous prime is 138875125117. The next prime is 138875125127. The reversal of 138875125125 is 521521578831.

It is not a de Polignac number, because 138875125125 - 2³ = 138875125117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138875125127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16829224 + ... + 16837473.

It is an arithmetic number, because the mean of its divisors is an integer number (7878007332).

Almost surely, 2^138875125125 is an apocalyptic number.

138875125125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138875125125 is a deficient number, since it is larger than the sum of its proper divisors (113221109499).

138875125125 is a wasteful number, since it uses less digits than its factorization.

138875125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33666726 (or 33666716 counting only the distinct ones).

The product of its digits is 672000, while the sum is 48.

The spelling of 138875125125 in words is "one hundred thirty-eight billion, eight hundred seventy-five million, one hundred twenty-five thousand, one hundred twenty-five".