12316456 has 8 divisors (see below), whose sum is σ = 23093370. Its totient is φ = 6158224.

The previous prime is 12316439. The next prime is 12316457. The reversal of 12316456 is 65461321.

It can be written as a sum of positive squares in only one way, i.e., 8031556 + 4284900 = 2834^2 + 2070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12316457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769771 + ... + 769786.

Almost surely, 2^12316456 is an apocalyptic number.

It is an amenable number.

12316456 is a deficient number, since it is larger than the sum of its proper divisors (10776914).

12316456 is a wasteful number, since it uses less digits than its factorization.

12316456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539563 (or 1539559 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 12316456 is about 3509.4808732917. The cubic root of 12316456 is about 230.9379217632.

Adding to 12316456 its reverse (65461321), we get a palindrome (77777777).

The spelling of 12316456 in words is "twelve million, three hundred sixteen thousand, four hundred fifty-six".