13223291 has 2 divisors, whose sum is σ = 13223292. Its totient is φ = 13223290.

The previous prime is 13223281. The next prime is 13223299. The reversal of 13223291 is 19232231.

It is a strong prime.

It is an emirp because it is prime and its reverse (19232231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13223291 - 2¹⁰ = 13222267 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13223299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611645 + 6611646.

It is an arithmetic number, because the mean of its divisors is an integer number (6611646).

Almost surely, 2^13223291 is an apocalyptic number.

13223291 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223291 is an equidigital number, since it uses as much as digits as its factorization.

13223291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 13223291 is about 3636.3843306229. The cubic root of 13223291 is about 236.4720693132.

The spelling of 13223291 in words is "thirteen million, two hundred twenty-three thousand, two hundred ninety-one".