12569489 has 2 divisors, whose sum is σ = 12569490. Its totient is φ = 12569488.

The previous prime is 12569483. The next prime is 12569497. The reversal of 12569489 is 98496521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7795264 + 4774225 = 2792^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 12569489 - 2²⁰ = 11520913 is a prime.

It is a super-2 number, since 2×12569489² = 315984107442242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12569483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6284744 + 6284745.

It is an arithmetic number, because the mean of its divisors is an integer number (6284745).

Almost surely, 2^12569489 is an apocalyptic number.

It is an amenable number.

12569489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12569489 is an equidigital number, since it uses as much as digits as its factorization.

12569489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 12569489 is about 3545.3475147015. The cubic root of 12569489 is about 232.5086997169.

The spelling of 12569489 in words is "twelve million, five hundred sixty-nine thousand, four hundred eighty-nine".