138777500125 has 16 divisors (see below), whose sum is σ = 188939260224. Its totient is φ = 100929090000.

The previous prime is 138777500083. The next prime is 138777500159. The reversal of 138777500125 is 521005777831.

138777500125 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 138777500125 - 2¹¹ = 138777498077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50463171 + ... + 50465920.

It is an arithmetic number, because the mean of its divisors is an integer number (11808703764).

Almost surely, 2^138777500125 is an apocalyptic number.

It is an amenable number.

138777500125 is a deficient number, since it is larger than the sum of its proper divisors (50161760099).

138777500125 is a wasteful number, since it uses less digits than its factorization.

138777500125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100929117 (or 100929107 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 46.

The spelling of 138777500125 in words is "one hundred thirty-eight billion, seven hundred seventy-seven million, five hundred thousand, one hundred twenty-five".