13242569 has 4 divisors (see below), whose sum is σ = 13255620. Its totient is φ = 13229520.

The previous prime is 13242547. The next prime is 13242587. The reversal of 13242569 is 96524231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96524231 = 37 ⋅2608763.

It can be written as a sum of positive squares in 2 ways, for example, as 1408969 + 11833600 = 1187^2 + 3440^2 .

It is a cyclic number.

It is not a de Polignac number, because 13242569 - 2¹² = 13238473 is a prime.

It is a super-2 number, since 2×13242569² = 350731267439522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13242529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862 + ... + 7079.

It is an arithmetic number, because the mean of its divisors is an integer number (3313905).

Almost surely, 2^13242569 is an apocalyptic number.

It is an amenable number.

13242569 is a deficient number, since it is larger than the sum of its proper divisors (13051).

13242569 is a wasteful number, since it uses less digits than its factorization.

13242569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13050.

The product of its digits is 12960, while the sum is 32.

The square root of 13242569 is about 3639.0340751359. The cubic root of 13242569 is about 236.5869296504.

The spelling of 13242569 in words is "thirteen million, two hundred forty-two thousand, five hundred sixty-nine".