13818013 has 8 divisors (see below), whose sum is σ = 15300000. Its totient is φ = 12373680.

The previous prime is 13817987. The next prime is 13818017. The reversal of 13818013 is 31081831.

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

It is not a de Polignac number, because 13818013 - 2¹⁷ = 13686941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13818017) 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 7 ways as a sum of consecutive naturals, for example, 8638 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (1912500).

Almost surely, 2^13818013 is an apocalyptic number.

It is an amenable number.

13818013 is a deficient number, since it is larger than the sum of its proper divisors (1481987).

13818013 is a wasteful number, since it uses less digits than its factorization.

13818013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18827.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 13818013 is about 3717.2588018592. The cubic root of 13818013 is about 239.9653480063.

Adding to 13818013 its reverse (31081831), we get a palindrome (44899844).

The spelling of 13818013 in words is "thirteen million, eight hundred eighteen thousand, thirteen".