12432569 has 2 divisors, whose sum is σ = 12432570. Its totient is φ = 12432568.

The previous prime is 12432533. The next prime is 12432571. The reversal of 12432569 is 96523421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7645225 + 4787344 = 2765^2 + 2188^2 .

It is an emirp because it is prime and its reverse (96523421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12432569 - 2¹² = 12428473 is a prime.

It is a super-2 number, since 2×12432569² = 309137543879522, which contains 22 as substring.

Together with 12432571, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12432509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6216284 + 6216285.

It is an arithmetic number, because the mean of its divisors is an integer number (6216285).

Almost surely, 2^12432569 is an apocalyptic number.

It is an amenable number.

12432569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12432569 is an equidigital number, since it uses as much as digits as its factorization.

12432569 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12432569 is about 3525.9848269668. The cubic root of 12432569 is about 231.6613730539.

The spelling of 12432569 in words is "twelve million, four hundred thirty-two thousand, five hundred sixty-nine".