13228313 has 16 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 10597392.

The previous prime is 13228307. The next prime is 13228333. The reversal of 13228313 is 31382231.

13228313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13228313 - 2⁴ = 13228297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13228333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9878 + ... + 11136.

It is an arithmetic number, because the mean of its divisors is an integer number (1008000).

Almost surely, 2^13228313 is an apocalyptic number.

It is an amenable number.

13228313 is a deficient number, since it is larger than the sum of its proper divisors (2899687).

13228313 is a wasteful number, since it uses less digits than its factorization.

13228313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364.

The product of its digits is 864, while the sum is 23.

The square root of 13228313 is about 3637.0747861434. The cubic root of 13228313 is about 236.5020016607.

The spelling of 13228313 in words is "thirteen million, two hundred twenty-eight thousand, three hundred thirteen".