13939508293 has 2 divisors, whose sum is σ = 13939508294. Its totient is φ = 13939508292.

The previous prime is 13939508239. The next prime is 13939508299. The reversal of 13939508293 is 39280593931.

Together with previous prime (13939508239) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10011603364 + 3927904929 = 100058^2 + 62673^2 .

It is a cyclic number.

It is not a de Polignac number, because 13939508293 - 2¹³ = 13939500101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13939508293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13939508299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6969754146 + 6969754147.

It is an arithmetic number, because the mean of its divisors is an integer number (6969754147).

Almost surely, 2^13939508293 is an apocalyptic number.

It is an amenable number.

13939508293 is a deficient number, since it is larger than the sum of its proper divisors (1).

13939508293 is an equidigital number, since it uses as much as digits as its factorization.

13939508293 is an evil number, because the sum of its binary digits is even.

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

The spelling of 13939508293 in words is "thirteen billion, nine hundred thirty-nine million, five hundred eight thousand, two hundred ninety-three".