13133144 has 16 divisors (see below), whose sum is σ = 24664200. Its totient is φ = 6556032.

The previous prime is 13133111. The next prime is 13133147. The reversal of 13133144 is 44133131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133147) 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, 7259 + ... + 8885.

Almost surely, 2^13133144 is an apocalyptic number.

It is an amenable number.

13133144 is a deficient number, since it is larger than the sum of its proper divisors (11531056).

13133144 is a wasteful number, since it uses less digits than its factorization.

13133144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642 (or 2638 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 13133144 is about 3623.9679910286. The cubic root of 13133144 is about 235.9334773725.

Adding to 13133144 its reverse (44133131), we get a palindrome (57266275).

The spelling of 13133144 in words is "thirteen million, one hundred thirty-three thousand, one hundred forty-four".