13525340239 has 2 divisors, whose sum is σ = 13525340240. Its totient is φ = 13525340238.

The previous prime is 13525340237. The next prime is 13525340251. The reversal of 13525340239 is 93204352531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13525340239 - 2¹ = 13525340237 is a prime.

Together with 13525340237, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13525340198 and 13525340207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525340237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762670119 + 6762670120.

It is an arithmetic number, because the mean of its divisors is an integer number (6762670120).

Almost surely, 2^13525340239 is an apocalyptic number.

13525340239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525340239 is an equidigital number, since it uses as much as digits as its factorization.

13525340239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 13525340239 in words is "thirteen billion, five hundred twenty-five million, three hundred forty thousand, two hundred thirty-nine".