13216901 has 2 divisors, whose sum is σ = 13216902. Its totient is φ = 13216900.

The previous prime is 13216873. The next prime is 13216909. The reversal of 13216901 is 10961231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9156676 + 4060225 = 3026^2 + 2015^2 .

It is an emirp because it is prime and its reverse (10961231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13216901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216909) 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, 6608450 + 6608451.

It is an arithmetic number, because the mean of its divisors is an integer number (6608451).

Almost surely, 2^13216901 is an apocalyptic number.

It is an amenable number.

13216901 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216901 is an equidigital number, since it uses as much as digits as its factorization.

13216901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 13216901 is about 3635.5056044517. The cubic root of 13216901 is about 236.4339723929.

The spelling of 13216901 in words is "thirteen million, two hundred sixteen thousand, nine hundred one".