13317761 has 2 divisors, whose sum is σ = 13317762. Its totient is φ = 13317760.

The previous prime is 13317751. The next prime is 13317763. The reversal of 13317761 is 16771331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8300161 + 5017600 = 2881^2 + 2240^2 .

It is an emirp because it is prime and its reverse (16771331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13317761 - 2¹⁴ = 13301377 is a prime.

Together with 13317763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13317763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658880 + 6658881.

It is an arithmetic number, because the mean of its divisors is an integer number (6658881).

Almost surely, 2^13317761 is an apocalyptic number.

It is an amenable number.

13317761 is a deficient number, since it is larger than the sum of its proper divisors (1).

13317761 is an equidigital number, since it uses as much as digits as its factorization.

13317761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 29.

The square root of 13317761 is about 3649.3507641771. The cubic root of 13317761 is about 237.0338691233.

The spelling of 13317761 in words is "thirteen million, three hundred seventeen thousand, seven hundred sixty-one".