13226569 has 4 divisors (see below), whose sum is σ = 13443460. Its totient is φ = 13009680.

The previous prime is 13226531. The next prime is 13226579. The reversal of 13226569 is 96562231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96562231 = 883 ⋅109357.

It can be written as a sum of positive squares in 2 ways, for example, as 1530169 + 11696400 = 1237^2 + 3420^2 .

It is a cyclic number.

It is not a de Polignac number, because 13226569 - 2¹⁷ = 13095497 is a prime.

It is a super-2 number, since 2×13226569² = 349884255023522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13226509) 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 in 3 ways as a sum of consecutive naturals, for example, 108354 + ... + 108475.

It is an arithmetic number, because the mean of its divisors is an integer number (3360865).

Almost surely, 2^13226569 is an apocalyptic number.

It is an amenable number.

13226569 is a deficient number, since it is larger than the sum of its proper divisors (216891).

13226569 is an equidigital number, since it uses as much as digits as its factorization.

13226569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216890.

The product of its digits is 19440, while the sum is 34.

The square root of 13226569 is about 3636.8350251283. The cubic root of 13226569 is about 236.4916078531.

The spelling of 13226569 in words is "thirteen million, two hundred twenty-six thousand, five hundred sixty-nine".