13224513 has 12 divisors (see below), whose sum is σ = 18611088. Its totient is φ = 8351640.

The previous prime is 13224499. The next prime is 13224539. The reversal of 13224513 is 31542231.

It is not a de Polignac number, because 13224513 - 2¹⁷ = 13093441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13224513.

It is not an unprimeable number, because it can be changed into a prime (13224583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5023 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (1550924).

Almost surely, 2^13224513 is an apocalyptic number.

It is an amenable number.

13224513 is a deficient number, since it is larger than the sum of its proper divisors (5386575).

13224513 is a wasteful number, since it uses less digits than its factorization.

13224513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12252 (or 12233 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 13224513 is about 3636.5523507850. The cubic root of 13224513 is about 236.4793534294.

Adding to 13224513 its reverse (31542231), we get a palindrome (44766744).

The spelling of 13224513 in words is "thirteen million, two hundred twenty-four thousand, five hundred thirteen".