12316218 has 16 divisors (see below), whose sum is σ = 25929120. Its totient is φ = 3889296.

The previous prime is 12316181. The next prime is 12316219. The reversal of 12316218 is 81261321.

It is a super-3 number, since 3×12316218³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12316219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53905 + ... + 54132.

It is an arithmetic number, because the mean of its divisors is an integer number (1620570).

Almost surely, 2^12316218 is an apocalyptic number.

12316218 is an abundant number, since it is smaller than the sum of its proper divisors (13612902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12316218 is a wasteful number, since it uses less digits than its factorization.

12316218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108061.

The product of its digits is 576, while the sum is 24.

The square root of 12316218 is about 3509.4469649790. The cubic root of 12316218 is about 230.9364342255.

Adding to 12316218 its reverse (81261321), we get a palindrome (93577539).

The spelling of 12316218 in words is "twelve million, three hundred sixteen thousand, two hundred eighteen".