12544369 has 8 divisors (see below), whose sum is σ = 12956328. Its totient is φ = 12136320.

The previous prime is 12544321. The next prime is 12544379. The reversal of 12544369 is 96344521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9610000 + 2934369 = 3100^2 + 1713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12544369 - 2⁷ = 12544241 is a prime.

It is a super-2 number, since 2×12544369² = 314722387216322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12544309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6429 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (1619541).

Almost surely, 2^12544369 is an apocalyptic number.

It is an amenable number.

12544369 is a deficient number, since it is larger than the sum of its proper divisors (411959).

12544369 is a wasteful number, since it uses less digits than its factorization.

12544369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955.

The product of its digits is 25920, while the sum is 34.

The square root of 12544369 is about 3541.8030718830. The cubic root of 12544369 is about 232.3537076386.

The spelling of 12544369 in words is "twelve million, five hundred forty-four thousand, three hundred sixty-nine".