13216241 has 2 divisors, whose sum is σ = 13216242. Its totient is φ = 13216240.

The previous prime is 13216223. The next prime is 13216243. The reversal of 13216241 is 14261231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 6477025 = 2596^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 13216241 - 2²² = 9021937 is a prime.

Together with 13216243, 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 (13216243) 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, 6608120 + 6608121.

It is an arithmetic number, because the mean of its divisors is an integer number (6608121).

Almost surely, 2^13216241 is an apocalyptic number.

It is an amenable number.

13216241 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216241 is an equidigital number, since it uses as much as digits as its factorization.

13216241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 13216241 is about 3635.4148319002. The cubic root of 13216241 is about 236.4300368002.

Adding to 13216241 its reverse (14261231), we get a palindrome (27477472).

The spelling of 13216241 in words is "thirteen million, two hundred sixteen thousand, two hundred forty-one".