12569441 has 4 divisors (see below), whose sum is σ = 13002900. Its totient is φ = 12135984.

The previous prime is 12569413. The next prime is 12569461. The reversal of 12569441 is 14496521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14496521 = 13 ⋅1115117.

It can be written as a sum of positive squares in 2 ways, for example, as 5387041 + 7182400 = 2321^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 12569441 - 2⁶ = 12569377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12569398 and 12569407.

It is not an unprimeable number, because it can be changed into a prime (12569461) 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, 216686 + ... + 216743.

It is an arithmetic number, because the mean of its divisors is an integer number (3250725).

Almost surely, 2^12569441 is an apocalyptic number.

It is an amenable number.

12569441 is a deficient number, since it is larger than the sum of its proper divisors (433459).

12569441 is an equidigital number, since it uses as much as digits as its factorization.

12569441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433458.

The product of its digits is 8640, while the sum is 32.

The square root of 12569441 is about 3545.3407452599. The cubic root of 12569441 is about 232.5084037507.

The spelling of 12569441 in words is "twelve million, five hundred sixty-nine thousand, four hundred forty-one".