13228985 has 16 divisors (see below), whose sum is σ = 19792512. Its totient is φ = 8246400.

The previous prime is 13228973. The next prime is 13229053. The reversal of 13228985 is 58982231.

It is a de Polignac number, because none of the positive numbers 2^k-13228985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16796 + ... + 17565.

It is an arithmetic number, because the mean of its divisors is an integer number (1237032).

Almost surely, 2^13228985 is an apocalyptic number.

It is an amenable number.

13228985 is a deficient number, since it is larger than the sum of its proper divisors (6563527).

13228985 is a wasteful number, since it uses less digits than its factorization.

13228985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34384.

The product of its digits is 34560, while the sum is 38.

The square root of 13228985 is about 3637.1671669034. The cubic root of 13228985 is about 236.5060063702.

The spelling of 13228985 in words is "thirteen million, two hundred twenty-eight thousand, nine hundred eighty-five".