13224665 has 16 divisors (see below), whose sum is σ = 16873920. Its totient is φ = 9921600.

The previous prime is 13224647. The next prime is 13224671. The reversal of 13224665 is 56642231.

It is not a de Polignac number, because 13224665 - 2²² = 9030361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9515 + ... + 10815.

It is an arithmetic number, because the mean of its divisors is an integer number (1054620).

Almost surely, 2^13224665 is an apocalyptic number.

It is an amenable number.

13224665 is a deficient number, since it is larger than the sum of its proper divisors (3649255).

13224665 is a wasteful number, since it uses less digits than its factorization.

13224665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432.

The product of its digits is 8640, while the sum is 29.

The square root of 13224665 is about 3636.5732496404. The cubic root of 13224665 is about 236.4802594420.

Adding to 13224665 its reverse (56642231), we get a palindrome (69866896).

The spelling of 13224665 in words is "thirteen million, two hundred twenty-four thousand, six hundred sixty-five".