13227218 has 8 divisors (see below), whose sum is σ = 19859340. Its totient is φ = 6607440.

The previous prime is 13227209. The next prime is 13227251. The reversal of 13227218 is 81272231.

13227218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12201049 + 1026169 = 3493^2 + 1013^2 .

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

It is a Curzon number.

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, 368 + ... + 5156.

Almost surely, 2^13227218 is an apocalyptic number.

13227218 is a deficient number, since it is larger than the sum of its proper divisors (6632122).

13227218 is a wasteful number, since it uses less digits than its factorization.

13227218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172.

The product of its digits is 1344, while the sum is 26.

The square root of 13227218 is about 3636.9242499673. The cubic root of 13227218 is about 236.4954758389.

Adding to 13227218 its reverse (81272231), we get a palindrome (94499449).

The spelling of 13227218 in words is "thirteen million, two hundred twenty-seven thousand, two hundred eighteen".