12316455 has 56 divisors (see below), whose sum is σ = 23084160. Its totient is φ = 6298560.

The previous prime is 12316439. The next prime is 12316457. The reversal of 12316455 is 55461321.

12316455 is a `hidden beast` number, since 12 + 3 + 1 + 645 + 5 = 666.

It is not a de Polignac number, because 12316455 - 2⁴ = 12316439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 112941 + ... + 113049.

Almost surely, 2^12316455 is an apocalyptic number.

12316455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12316455 is a deficient number, since it is larger than the sum of its proper divisors (10767705).

12316455 is an equidigital number, since it uses as much as digits as its factorization.

12316455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 148 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 12316455 is about 3509.4807308204. The cubic root of 12316455 is about 230.9379155131.

Adding to 12316455 its reverse (55461321), we get a palindrome (67777776).

The spelling of 12316455 in words is "twelve million, three hundred sixteen thousand, four hundred fifty-five".