12456313 has 4 divisors (see below), whose sum is σ = 12472740. Its totient is φ = 12439888.

The previous prime is 12456307. The next prime is 12456319. The reversal of 12456313 is 31365421.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12456307) and next prime (12456319).

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 2036329 = 3228^2 + 1427^2 .

It is a cyclic number.

It is not a de Polignac number, because 12456313 - 2⁵ = 12456281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12456319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7018 + ... + 8611.

It is an arithmetic number, because the mean of its divisors is an integer number (3118185).

Almost surely, 2^12456313 is an apocalyptic number.

It is an amenable number.

12456313 is a deficient number, since it is larger than the sum of its proper divisors (16427).

12456313 is an equidigital number, since it uses as much as digits as its factorization.

12456313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16426.

The product of its digits is 2160, while the sum is 25.

The square root of 12456313 is about 3529.3502234831. The cubic root of 12456313 is about 231.8087566357.

It can be divided in two parts, 12456 and 313, that added together give a square (12769 = 113²).

The spelling of 12456313 in words is "twelve million, four hundred fifty-six thousand, three hundred thirteen".