138887625139 has 8 divisors (see below), whose sum is σ = 140716996560. Its totient is φ = 137066366976.

The previous prime is 138887625127. The next prime is 138887625157. The reversal of 138887625139 is 931526788831.

138887625139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138887625139 - 2⁷ = 138887625011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138887625169) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1993849 + ... + 2062330.

It is an arithmetic number, because the mean of its divisors is an integer number (17589624570).

Almost surely, 2^138887625139 is an apocalyptic number.

138887625139 is a deficient number, since it is larger than the sum of its proper divisors (1829371421).

138887625139 is an equidigital number, since it uses as much as digits as its factorization.

138887625139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056629.

The product of its digits is 17418240, while the sum is 61.

The spelling of 138887625139 in words is "one hundred thirty-eight billion, eight hundred eighty-seven million, six hundred twenty-five thousand, one hundred thirty-nine".