13228169 has 2 divisors, whose sum is σ = 13228170. Its totient is φ = 13228168.

The previous prime is 13228157. The next prime is 13228177. The reversal of 13228169 is 96182231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13227769 + 400 = 3637^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 13228169 - 2⁴ = 13228153 is a prime.

It is a super-2 number, since 2×13228169² = 349968910185122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13228069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6614084 + 6614085.

It is an arithmetic number, because the mean of its divisors is an integer number (6614085).

Almost surely, 2^13228169 is an apocalyptic number.

It is an amenable number.

13228169 is a deficient number, since it is larger than the sum of its proper divisors (1).

13228169 is an equidigital number, since it uses as much as digits as its factorization.

13228169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 13228169 is about 3637.0549899610. The cubic root of 13228169 is about 236.5011434910.

The spelling of 13228169 in words is "thirteen million, two hundred twenty-eight thousand, one hundred sixty-nine".