13016818 has 16 divisors (see below), whose sum is σ = 19880280. Its totient is φ = 6391296.

The previous prime is 13016813. The next prime is 13016819. The reversal of 13016818 is 81861031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12837889 + 178929 = 3583^2 + 423^2 .

It is not an unprimeable number, because it can be changed into a prime (13016813) 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, 44280 + ... + 44572.

Almost surely, 2^13016818 is an apocalyptic number.

13016818 is a deficient number, since it is larger than the sum of its proper divisors (6863462).

13016818 is a wasteful number, since it uses less digits than its factorization.

13016818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 13016818 is about 3607.8827586273. The cubic root of 13016818 is about 235.2348218647.

Adding to 13016818 its reverse (81861031), we get a palindrome (94877849).

The spelling of 13016818 in words is "thirteen million, sixteen thousand, eight hundred eighteen".