12156265139 has 2 divisors, whose sum is σ = 12156265140. Its totient is φ = 12156265138.

The previous prime is 12156265061. The next prime is 12156265181. The reversal of 12156265139 is 93156265121.

12156265139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12156265139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12156265096 and 12156265105.

It is not a weakly prime, because it can be changed into another prime (12156264139) 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 as a sum of consecutive naturals, namely, 6078132569 + 6078132570.

It is an arithmetic number, because the mean of its divisors is an integer number (6078132570).

Almost surely, 2^12156265139 is an apocalyptic number.

12156265139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12156265139 is an equidigital number, since it uses as much as digits as its factorization.

12156265139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The spelling of 12156265139 in words is "twelve billion, one hundred fifty-six million, two hundred sixty-five thousand, one hundred thirty-nine".