12317451 has 4 divisors (see below), whose sum is σ = 16423272. Its totient is φ = 8211632.

The previous prime is 12317441. The next prime is 12317467. The reversal of 12317451 is 15471321.

12317451 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 12317451 - 2¹¹ = 12315403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12317441) 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, 2052906 + ... + 2052911.

It is an arithmetic number, because the mean of its divisors is an integer number (4105818).

Almost surely, 2^12317451 is an apocalyptic number.

12317451 is a deficient number, since it is larger than the sum of its proper divisors (4105821).

12317451 is an equidigital number, since it uses as much as digits as its factorization.

12317451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105820.

The product of its digits is 840, while the sum is 24.

The square root of 12317451 is about 3509.6226292865. The cubic root of 12317451 is about 230.9441404635.

Adding to 12317451 its reverse (15471321), we get a palindrome (27788772).

The spelling of 12317451 in words is "twelve million, three hundred seventeen thousand, four hundred fifty-one".