12635005139 has 2 divisors, whose sum is σ = 12635005140. Its totient is φ = 12635005138.

The previous prime is 12635005133. The next prime is 12635005247. The reversal of 12635005139 is 93150053621.

12635005139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (93150053621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12635005139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12635005099 and 12635005108.

It is not a weakly prime, because it can be changed into another prime (12635005133) 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, 6317502569 + 6317502570.

It is an arithmetic number, because the mean of its divisors is an integer number (6317502570).

Almost surely, 2^12635005139 is an apocalyptic number.

12635005139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12635005139 is an equidigital number, since it uses as much as digits as its factorization.

12635005139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 12635005139 in words is "twelve billion, six hundred thirty-five million, five thousand, one hundred thirty-nine".