13361218 has 64 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 5225472.

The previous prime is 13361213. The next prime is 13361219. The reversal of 13361218 is 81216331.

It is a junction number, because it is equal to n+sod(n) for n = 13361192 and 13361201.

It is not an unprimeable number, because it can be changed into a prime (13361213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 310705 + ... + 310747.

It is an arithmetic number, because the mean of its divisors is an integer number (395010).

Almost surely, 2^13361218 is an apocalyptic number.

13361218 is a deficient number, since it is larger than the sum of its proper divisors (11919422).

13361218 is a wasteful number, since it uses less digits than its factorization.

13361218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131.

The product of its digits is 864, while the sum is 25.

The square root of 13361218 is about 3655.2999876891. The cubic root of 13361218 is about 237.2914098367.

Adding to 13361218 its reverse (81216331), we get a palindrome (94577549).

The spelling of 13361218 in words is "thirteen million, three hundred sixty-one thousand, two hundred eighteen".