13617185129 has 2 divisors, whose sum is σ = 13617185130. Its totient is φ = 13617185128.

The previous prime is 13617185117. The next prime is 13617185149. The reversal of 13617185129 is 92158171631.

13617185129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13553616400 + 63568729 = 116420^2 + 7973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13617185129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13617185129.

It is not a weakly prime, because it can be changed into another prime (13617185149) 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, 6808592564 + 6808592565.

It is an arithmetic number, because the mean of its divisors is an integer number (6808592565).

Almost surely, 2^13617185129 is an apocalyptic number.

It is an amenable number.

13617185129 is a deficient number, since it is larger than the sum of its proper divisors (1).

13617185129 is an equidigital number, since it uses as much as digits as its factorization.

13617185129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 44.

The spelling of 13617185129 in words is "thirteen billion, six hundred seventeen million, one hundred eighty-five thousand, one hundred twenty-nine".