13513318 has 24 divisors (see below), whose sum is σ = 25395552. Its totient is φ = 5345424.

The previous prime is 13513289. The next prime is 13513319. The reversal of 13513318 is 81331531.

13513318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13513292 and 13513301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13513319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4030 + ... + 6577.

It is an arithmetic number, because the mean of its divisors is an integer number (1058148).

Almost surely, 2^13513318 is an apocalyptic number.

13513318 is a deficient number, since it is larger than the sum of its proper divisors (11882234).

13513318 is a wasteful number, since it uses less digits than its factorization.

13513318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10636 (or 10629 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 13513318 is about 3676.0465176600. The cubic root of 13513318 is about 238.1884320879.

Adding to 13513318 its reverse (81331531), we get a palindrome (94844849).

It can be divided in two parts, 13513 and 318, that added together give a palindrome (13831).

The spelling of 13513318 in words is "thirteen million, five hundred thirteen thousand, three hundred eighteen".