13312265 has 4 divisors (see below), whose sum is σ = 15974724. Its totient is φ = 10649808.

The previous prime is 13312261. The next prime is 13312283. The reversal of 13312265 is 56221331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56221331 = 107 ⋅525433.

It can be written as a sum of positive squares in 2 ways, for example, as 1731856 + 11580409 = 1316^2 + 3403^2 .

It is a cyclic number.

It is not a de Polignac number, because 13312265 - 2² = 13312261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13312265.

It is not an unprimeable number, because it can be changed into a prime (13312261) 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, 1331222 + ... + 1331231.

It is an arithmetic number, because the mean of its divisors is an integer number (3993681).

Almost surely, 2^13312265 is an apocalyptic number.

It is an amenable number.

13312265 is a deficient number, since it is larger than the sum of its proper divisors (2662459).

13312265 is an equidigital number, since it uses as much as digits as its factorization.

13312265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662458.

The product of its digits is 1080, while the sum is 23.

The square root of 13312265 is about 3648.5976758201. The cubic root of 13312265 is about 237.0012581013.

Adding to 13312265 its reverse (56221331), we get a palindrome (69533596).

The spelling of 13312265 in words is "thirteen million, three hundred twelve thousand, two hundred sixty-five".