13115244 has 96 divisors (see below), whose sum is σ = 34997760. Its totient is φ = 3801600.

The previous prime is 13115243. The next prime is 13115251. The reversal of 13115244 is 44251131.

13115244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13115244.

It is not an unprimeable number, because it can be changed into a prime (13115243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214974 + ... + 215034.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

Almost surely, 2^13115244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13115244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17498880).

13115244 is an abundant number, since it is smaller than the sum of its proper divisors (21882516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13115244 is a wasteful number, since it uses less digits than its factorization.

13115244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 149 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 13115244 is about 3621.4974803250. The cubic root of 13115244 is about 235.8262390399.

Adding to 13115244 its reverse (44251131), we get a palindrome (57366375).

It can be divided in two parts, 1311 and 5244, that multiplied together give a square (6874884 = 2622²).

The spelling of 13115244 in words is "thirteen million, one hundred fifteen thousand, two hundred forty-four".