13285217 has 8 divisors (see below), whose sum is σ = 14643552. Its totient is φ = 11952000.

The previous prime is 13285213. The next prime is 13285231. The reversal of 13285217 is 71258231.

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 13285217 - 2² = 13285213 is a prime.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 13285217.

It is not an unprimeable number, because it can be changed into a prime (13285213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5159 + ... + 7292.

It is an arithmetic number, because the mean of its divisors is an integer number (1830444).

Almost surely, 2^13285217 is an apocalyptic number.

It is an amenable number.

13285217 is a deficient number, since it is larger than the sum of its proper divisors (1358335).

13285217 is a wasteful number, since it uses less digits than its factorization.

13285217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12559.

The product of its digits is 3360, while the sum is 29.

The square root of 13285217 is about 3644.8891615521. The cubic root of 13285217 is about 236.8406353844.

The spelling of 13285217 in words is "thirteen million, two hundred eighty-five thousand, two hundred seventeen".