12536449 has 4 divisors (see below), whose sum is σ = 13081536. Its totient is φ = 11991364.

The previous prime is 12536411. The next prime is 12536467. The reversal of 12536449 is 94463521.

It is a happy number.

12536449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94463521 = 1277 ⋅73973.

It is a cyclic number.

It is not a de Polignac number, because 12536449 - 2⁹ = 12535937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12506449) 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, 272509 + ... + 272554.

It is an arithmetic number, because the mean of its divisors is an integer number (3270384).

Almost surely, 2^12536449 is an apocalyptic number.

It is an amenable number.

12536449 is a deficient number, since it is larger than the sum of its proper divisors (545087).

12536449 is an equidigital number, since it uses as much as digits as its factorization.

12536449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545086.

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

The square root of 12536449 is about 3540.6848207656. The cubic root of 12536449 is about 232.3047978107.

The spelling of 12536449 in words is "twelve million, five hundred thirty-six thousand, four hundred forty-nine".