13192661 has 2 divisors, whose sum is σ = 13192662. Its totient is φ = 13192660.

The previous prime is 13192643. The next prime is 13192691. The reversal of 13192661 is 16629131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8702500 + 4490161 = 2950^2 + 2119^2 .

It is a cyclic number.

It is not a de Polignac number, because 13192661 - 2¹⁰ = 13191637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13192691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6596330 + 6596331.

It is an arithmetic number, because the mean of its divisors is an integer number (6596331).

Almost surely, 2^13192661 is an apocalyptic number.

It is an amenable number.

13192661 is a deficient number, since it is larger than the sum of its proper divisors (1).

13192661 is an equidigital number, since it uses as much as digits as its factorization.

13192661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

The square root of 13192661 is about 3632.1702878582. The cubic root of 13192661 is about 236.2893427569.

The spelling of 13192661 in words is "thirteen million, one hundred ninety-two thousand, six hundred sixty-one".