12456943 has 2 divisors, whose sum is σ = 12456944. Its totient is φ = 12456942.

The previous prime is 12456929. The next prime is 12456991. The reversal of 12456943 is 34965421.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34965421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12456943 - 2⁵ = 12456911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12456899 and 12456908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12456043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228471 + 6228472.

It is an arithmetic number, because the mean of its divisors is an integer number (6228472).

Almost surely, 2^12456943 is an apocalyptic number.

12456943 is a deficient number, since it is larger than the sum of its proper divisors (1).

12456943 is an equidigital number, since it uses as much as digits as its factorization.

12456943 is an evil number, because the sum of its binary digits is even.

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

The square root of 12456943 is about 3529.4394739108. The cubic root of 12456943 is about 231.8126646154.

The spelling of 12456943 in words is "twelve million, four hundred fifty-six thousand, nine hundred forty-three".