13133244 has 12 divisors (see below), whose sum is σ = 30644264. Its totient is φ = 4377744.

The previous prime is 13133233. The next prime is 13133249. The reversal of 13133244 is 44233131.

13133244 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13133244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547207 + ... + 547230.

Almost surely, 2^13133244 is an apocalyptic number.

It is an amenable number.

13133244 is an abundant number, since it is smaller than the sum of its proper divisors (17511020).

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

13133244 is a wasteful number, since it uses less digits than its factorization.

13133244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094444 (or 1094442 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 13133244 is about 3623.9817880337. The cubic root of 13133244 is about 235.9340761955.

Adding to 13133244 its reverse (44233131), we get a palindrome (57366375).

The spelling of 13133244 in words is "thirteen million, one hundred thirty-three thousand, two hundred forty-four".