12413218 has 8 divisors (see below), whose sum is σ = 19261980. Its totient is φ = 5992560.

The previous prime is 12413209. The next prime is 12413227. The reversal of 12413218 is 81231421.

It is a happy number.

12413218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12413209) and next prime (12413227).

It can be written as a sum of positive squares in 2 ways, for example, as 12020089 + 393129 = 3467^2 + 627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12413218² = 308175962231048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106953 + ... + 107068.

Almost surely, 2^12413218 is an apocalyptic number.

12413218 is a deficient number, since it is larger than the sum of its proper divisors (6848762).

12413218 is a wasteful number, since it uses less digits than its factorization.

12413218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214052.

The product of its digits is 384, while the sum is 22.

The square root of 12413218 is about 3523.2397023194. The cubic root of 12413218 is about 231.5411188228.

Adding to 12413218 its reverse (81231421), we get a palindrome (93644639).

The spelling of 12413218 in words is "twelve million, four hundred thirteen thousand, two hundred eighteen".