12256393 has 4 divisors (see below), whose sum is σ = 12263428. Its totient is φ = 12249360.

The previous prime is 12256379. The next prime is 12256397. The reversal of 12256393 is 39365221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7225344 + 5031049 = 2688^2 + 2243^2 .

It is a cyclic number.

It is not a de Polignac number, because 12256393 - 2²¹ = 10159241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12256397) 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, 1255 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (3065857).

Almost surely, 2^12256393 is an apocalyptic number.

It is an amenable number.

12256393 is a deficient number, since it is larger than the sum of its proper divisors (7035).

12256393 is an equidigital number, since it uses as much as digits as its factorization.

12256393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034.

The product of its digits is 9720, while the sum is 31.

The square root of 12256393 is about 3500.9131665895. The cubic root of 12256393 is about 230.5619090156.

The spelling of 12256393 in words is "twelve million, two hundred fifty-six thousand, three hundred ninety-three".