13452569 has 6 divisors (see below), whose sum is σ = 14567166. Its totient is φ = 12417600.

The previous prime is 13452547. The next prime is 13452577. The reversal of 13452569 is 96525431.

It can be written as a sum of positive squares in 3 ways, for example, as 1926544 + 11526025 = 1388^2 + 3395^2 .

It is not a de Polignac number, because 13452569 - 2¹² = 13448473 is a prime.

It is a super-2 number, since 2×13452569² = 361943225399522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13412569) 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 5 ways as a sum of consecutive naturals, for example, 39632 + ... + 39969.

It is an arithmetic number, because the mean of its divisors is an integer number (2427861).

Almost surely, 2^13452569 is an apocalyptic number.

It is an amenable number.

13452569 is a deficient number, since it is larger than the sum of its proper divisors (1114597).

13452569 is an equidigital number, since it uses as much as digits as its factorization.

13452569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79627 (or 79614 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 13452569 is about 3667.7743932799. The cubic root of 13452569 is about 237.8309712434.

The spelling of 13452569 in words is "thirteen million, four hundred fifty-two thousand, five hundred sixty-nine".