13939508239 has 2 divisors, whose sum is σ = 13939508240. Its totient is φ = 13939508238.

The previous prime is 13939508237. The next prime is 13939508293. The reversal of 13939508239 is 93280593931.

13939508239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (13939508293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13939508239 - 2¹ = 13939508237 is a prime.

It is a super-2 number, since 2×13939508239² (a number of 21 digits) contains 22 as substring.

Together with 13939508237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13939508237) 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, 6969754119 + 6969754120.

It is an arithmetic number, because the mean of its divisors is an integer number (6969754120).

Almost surely, 2^13939508239 is an apocalyptic number.

13939508239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13939508239 is an equidigital number, since it uses as much as digits as its factorization.

13939508239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 13939508239 in words is "thirteen billion, nine hundred thirty-nine million, five hundred eight thousand, two hundred thirty-nine".