12744569 has 2 divisors, whose sum is σ = 12744570. Its totient is φ = 12744568.

The previous prime is 12744527. The next prime is 12744581. The reversal of 12744569 is 96544721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12709225 + 35344 = 3565^2 + 188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12744569 is a prime.

It is a super-2 number, since 2×12744569² = 324848077991522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12744769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6372284 + 6372285.

It is an arithmetic number, because the mean of its divisors is an integer number (6372285).

Almost surely, 2^12744569 is an apocalyptic number.

It is an amenable number.

12744569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12744569 is an equidigital number, since it uses as much as digits as its factorization.

12744569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 12744569 is about 3569.9536411556. The cubic root of 12744569 is about 233.5832612267.

The spelling of 12744569 in words is "twelve million, seven hundred forty-four thousand, five hundred sixty-nine".