13133224 has 32 divisors (see below), whose sum is σ = 27243720. Its totient is φ = 5895936.

The previous prime is 13133213. The next prime is 13133233. The reversal of 13133224 is 42233131.

It can be written as a sum of positive squares in 4 ways, for example, as 13032100 + 101124 = 3610^2 + 318^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142 + ... + 5554.

Almost surely, 2^13133224 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 13133224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13621860).

13133224 is an abundant number, since it is smaller than the sum of its proper divisors (14110496).

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

13133224 is a wasteful number, since it uses less digits than its factorization.

13133224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469 (or 3465 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 13133224 is about 3623.9790286369. The cubic root of 13133224 is about 235.9339564311.

Adding to 13133224 its reverse (42233131), we get a palindrome (55366355).

The spelling of 13133224 in words is "thirteen million, one hundred thirty-three thousand, two hundred twenty-four".