139131205915 has 16 divisors (see below), whose sum is σ = 179887655808. Its totient is φ = 102693142656.

The previous prime is 139131205897. The next prime is 139131205933. The reversal of 139131205915 is 519502131931.

139131205915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (139131205897) and next prime (139131205933).

It is not a de Polignac number, because 139131205915 - 2⁹ = 139131205403 is a prime.

It is a Duffinian 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, 384684 + ... + 652873.

It is an arithmetic number, because the mean of its divisors is an integer number (11242978488).

Almost surely, 2^139131205915 is an apocalyptic number.

139131205915 is a deficient number, since it is larger than the sum of its proper divisors (40756449893).

139131205915 is a wasteful number, since it uses less digits than its factorization.

139131205915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039638.

The product of its (nonzero) digits is 36450, while the sum is 40.

The spelling of 139131205915 in words is "one hundred thirty-nine billion, one hundred thirty-one million, two hundred five thousand, nine hundred fifteen".