12436533139 has 2 divisors, whose sum is σ = 12436533140. Its totient is φ = 12436533138.

The previous prime is 12436533133. The next prime is 12436533257. The reversal of 12436533139 is 93133563421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12436533139 - 2¹⁵ = 12436500371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12436533133) 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 as a sum of consecutive naturals, namely, 6218266569 + 6218266570.

It is an arithmetic number, because the mean of its divisors is an integer number (6218266570).

Almost surely, 2^12436533139 is an apocalyptic number.

12436533139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12436533139 is an equidigital number, since it uses as much as digits as its factorization.

12436533139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 40.

The spelling of 12436533139 in words is "twelve billion, four hundred thirty-six million, five hundred thirty-three thousand, one hundred thirty-nine".