13216597 has 2 divisors, whose sum is σ = 13216598. Its totient is φ = 13216596.

The previous prime is 13216583. The next prime is 13216601. The reversal of 13216597 is 79561231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10150596 + 3066001 = 3186^2 + 1751^2 .

It is a cyclic number.

It is not a de Polignac number, because 13216597 - 2²³ = 4827989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216507) 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, 6608298 + 6608299.

It is an arithmetic number, because the mean of its divisors is an integer number (6608299).

Almost surely, 2^13216597 is an apocalyptic number.

It is an amenable number.

13216597 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216597 is an equidigital number, since it uses as much as digits as its factorization.

13216597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 34.

The square root of 13216597 is about 3635.4637943459. The cubic root of 13216597 is about 236.4321596513.

The spelling of 13216597 in words is "thirteen million, two hundred sixteen thousand, five hundred ninety-seven".