13331265 has 8 divisors (see below), whose sum is σ = 21330048. Its totient is φ = 7110000.

The previous prime is 13331251. The next prime is 13331287. The reversal of 13331265 is 56213331.

It is a happy number.

13331265 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13331265 - 2¹⁰ = 13330241 is a prime.

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, 444361 + ... + 444390.

It is an arithmetic number, because the mean of its divisors is an integer number (2666256).

Almost surely, 2^13331265 is an apocalyptic number.

13331265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13331265 is a deficient number, since it is larger than the sum of its proper divisors (7998783).

13331265 is an equidigital number, since it uses as much as digits as its factorization.

13331265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888759.

The product of its digits is 1620, while the sum is 24.

The square root of 13331265 is about 3651.2004875109. The cubic root of 13331265 is about 237.1139582636.

Adding to 13331265 its reverse (56213331), we get a palindrome (69544596).

The spelling of 13331265 in words is "thirteen million, three hundred thirty-one thousand, two hundred sixty-five".