13223239 has 2 divisors, whose sum is σ = 13223240. Its totient is φ = 13223238.

The previous prime is 13223237. The next prime is 13223269. The reversal of 13223239 is 93232231.

13223239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13223239 - 2¹ = 13223237 is a prime.

It is a super-2 number, since 2×13223239² = 349708099302242, which contains 22 as substring.

Together with 13223237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13223237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611619 + 6611620.

It is an arithmetic number, because the mean of its divisors is an integer number (6611620).

Almost surely, 2^13223239 is an apocalyptic number.

13223239 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223239 is an equidigital number, since it uses as much as digits as its factorization.

13223239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 13223239 is about 3636.3771806566. The cubic root of 13223239 is about 236.4717593408.

The spelling of 13223239 in words is "thirteen million, two hundred twenty-three thousand, two hundred thirty-nine".