13229569 has 4 divisors (see below), whose sum is σ = 13310896. Its totient is φ = 13148244.

The previous prime is 13229549. The next prime is 13229581. The reversal of 13229569 is 96592231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96592231 = 7127 ⋅13553.

It is a cyclic number.

It is not a de Polignac number, because 13229569 - 2⁷ = 13229441 is a prime.

It is a super-2 number, since 2×13229569² = 350042991851522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13229549) 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, 40419 + ... + 40744.

It is an arithmetic number, because the mean of its divisors is an integer number (3327724).

Almost surely, 2^13229569 is an apocalyptic number.

It is an amenable number.

13229569 is a deficient number, since it is larger than the sum of its proper divisors (81327).

13229569 is an equidigital number, since it uses as much as digits as its factorization.

13229569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81326.

The product of its digits is 29160, while the sum is 37.

The square root of 13229569 is about 3637.2474482773. The cubic root of 13229569 is about 236.5094865434.

The spelling of 13229569 in words is "thirteen million, two hundred twenty-nine thousand, five hundred sixty-nine".