12613574161 has 2 divisors, whose sum is σ = 12613574162. Its totient is φ = 12613574160.

The previous prime is 12613574153. The next prime is 12613574219. The reversal of 12613574161 is 16147531621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9361723536 + 3251850625 = 96756^2 + 57025^2 .

It is a cyclic number.

It is not a de Polignac number, because 12613574161 - 2³ = 12613574153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12613574161.

It is not a weakly prime, because it can be changed into another prime (12613574101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6306787080 + 6306787081.

It is an arithmetic number, because the mean of its divisors is an integer number (6306787081).

Almost surely, 2^12613574161 is an apocalyptic number.

It is an amenable number.

12613574161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12613574161 is an equidigital number, since it uses as much as digits as its factorization.

12613574161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The spelling of 12613574161 in words is "twelve billion, six hundred thirteen million, five hundred seventy-four thousand, one hundred sixty-one".