13518818 has 8 divisors (see below), whose sum is σ = 20295660. Its totient is φ = 6753600.

The previous prime is 13518811. The next prime is 13518829. The reversal of 13518818 is 81881531.

It can be written as a sum of positive squares in 2 ways, for example, as 13490929 + 27889 = 3673^2 + 167^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13518811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118 + ... + 5318.

Almost surely, 2^13518818 is an apocalyptic number.

13518818 is a deficient number, since it is larger than the sum of its proper divisors (6776842).

13518818 is a wasteful number, since it uses less digits than its factorization.

13518818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5812.

The product of its digits is 7680, while the sum is 35.

The square root of 13518818 is about 3676.7945278462. The cubic root of 13518818 is about 238.2207424029.

The spelling of 13518818 in words is "thirteen million, five hundred eighteen thousand, eight hundred eighteen".