13224191 has 2 divisors, whose sum is σ = 13224192. Its totient is φ = 13224190.

The previous prime is 13224187. The next prime is 13224193. The reversal of 13224191 is 19142231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13224191 - 2² = 13224187 is a prime.

Together with 13224193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13224193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612095 + 6612096.

It is an arithmetic number, because the mean of its divisors is an integer number (6612096).

Almost surely, 2^13224191 is an apocalyptic number.

13224191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13224191 is an equidigital number, since it uses as much as digits as its factorization.

13224191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

The square root of 13224191 is about 3636.5080778131. The cubic root of 13224191 is about 236.4774340905.

The spelling of 13224191 in words is "thirteen million, two hundred twenty-four thousand, one hundred ninety-one".