13233565 has 8 divisors (see below), whose sum is σ = 16814520. Its totient is φ = 9964032.

The previous prime is 13233553. The next prime is 13233569. The reversal of 13233565 is 56533231.

It can be written as a sum of positive squares in 4 ways, for example, as 6120676 + 7112889 = 2474^2 + 2667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13233565 - 2¹⁵ = 13200797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77760 + ... + 77929.

It is an arithmetic number, because the mean of its divisors is an integer number (2101815).

Almost surely, 2^13233565 is an apocalyptic number.

It is an amenable number.

13233565 is a deficient number, since it is larger than the sum of its proper divisors (3580955).

13233565 is a wasteful number, since it uses less digits than its factorization.

13233565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155711.

The product of its digits is 8100, while the sum is 28.

The square root of 13233565 is about 3637.7967232928. The cubic root of 13233565 is about 236.5332967615.

Adding to 13233565 its reverse (56533231), we get a palindrome (69766796).

The spelling of 13233565 in words is "thirteen million, two hundred thirty-three thousand, five hundred sixty-five".