13525135439 has 2 divisors, whose sum is σ = 13525135440. Its totient is φ = 13525135438.

The previous prime is 13525135423. The next prime is 13525135453. The reversal of 13525135439 is 93453152531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13525135439 - 2⁴ = 13525135423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13525135396 and 13525135405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525135409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762567719 + 6762567720.

It is an arithmetic number, because the mean of its divisors is an integer number (6762567720).

Almost surely, 2^13525135439 is an apocalyptic number.

13525135439 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525135439 is an equidigital number, since it uses as much as digits as its factorization.

13525135439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243000, while the sum is 41.

The spelling of 13525135439 in words is "thirteen billion, five hundred twenty-five million, one hundred thirty-five thousand, four hundred thirty-nine".