12615750139 has 2 divisors, whose sum is σ = 12615750140. Its totient is φ = 12615750138.

The previous prime is 12615750073. The next prime is 12615750179. The reversal of 12615750139 is 93105751621.

It is an a-pointer prime, because the next prime (12615750179) can be obtained adding 12615750139 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12615750139 - 2¹⁵ = 12615717371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12615750179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307875069 + 6307875070.

It is an arithmetic number, because the mean of its divisors is an integer number (6307875070).

Almost surely, 2^12615750139 is an apocalyptic number.

12615750139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615750139 is an equidigital number, since it uses as much as digits as its factorization.

12615750139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 12615750139 in words is "twelve billion, six hundred fifteen million, seven hundred fifty thousand, one hundred thirty-nine".