13513144 has 24 divisors (see below), whose sum is σ = 26536680. Its totient is φ = 6438960.

The previous prime is 13513133. The next prime is 13513151. The reversal of 13513144 is 44131531.

13513144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49729 + ... + 49999.

It is an arithmetic number, because the mean of its divisors is an integer number (1105695).

Almost surely, 2^13513144 is an apocalyptic number.

It is an amenable number.

13513144 is a deficient number, since it is larger than the sum of its proper divisors (13023536).

13513144 is an equidigital number, since it uses as much as digits as its factorization.

13513144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 296 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 13513144 is about 3676.0228508539. The cubic root of 13513144 is about 238.1874097640.

Adding to 13513144 its reverse (44131531), we get a palindrome (57644675).

The spelling of 13513144 in words is "thirteen million, five hundred thirteen thousand, one hundred forty-four".