13514605561 has 2 divisors, whose sum is σ = 13514605562. Its totient is φ = 13514605560.

The previous prime is 13514605529. The next prime is 13514605669. The reversal of 13514605561 is 16550641531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8811389161 + 4703216400 = 93869^2 + 68580^2 .

It is an emirp because it is prime and its reverse (16550641531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13514605561 - 2⁵ = 13514605529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13514605561.

It is not a weakly prime, because it can be changed into another prime (13514602561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6757302780 + 6757302781.

It is an arithmetic number, because the mean of its divisors is an integer number (6757302781).

Almost surely, 2^13514605561 is an apocalyptic number.

It is an amenable number.

13514605561 is a deficient number, since it is larger than the sum of its proper divisors (1).

13514605561 is an equidigital number, since it uses as much as digits as its factorization.

13514605561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 13514605561 in words is "thirteen billion, five hundred fourteen million, six hundred five thousand, five hundred sixty-one".