13223173 has 2 divisors, whose sum is σ = 13223174. Its totient is φ = 13223172.

The previous prime is 13223123. The next prime is 13223179. The reversal of 13223173 is 37132231.

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., 10510564 + 2712609 = 3242^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 13223173 - 2⁹ = 13222661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13223179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611586 + 6611587.

It is an arithmetic number, because the mean of its divisors is an integer number (6611587).

Almost surely, 2^13223173 is an apocalyptic number.

It is an amenable number.

13223173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223173 is an equidigital number, since it uses as much as digits as its factorization.

13223173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 22.

The square root of 13223173 is about 3636.3681056791. The cubic root of 13223173 is about 236.4713659132.

The spelling of 13223173 in words is "thirteen million, two hundred twenty-three thousand, one hundred seventy-three".