13285305 has 24 divisors (see below), whose sum is σ = 25122240. Its totient is φ = 6441120.

The previous prime is 13285291. The next prime is 13285319. The reversal of 13285305 is 50358231.

It is an interprime number because it is at equal distance from previous prime (13285291) and next prime (13285319).

It is not a de Polignac number, because 13285305 - 2⁵ = 13285273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12925 + ... + 13914.

It is an arithmetic number, because the mean of its divisors is an integer number (1046760).

Almost surely, 2^13285305 is an apocalyptic number.

13285305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13285305 is a deficient number, since it is larger than the sum of its proper divisors (11836935).

13285305 is a wasteful number, since it uses less digits than its factorization.

13285305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26861 (or 26858 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 13285305 is about 3644.9012332298. The cubic root of 13285305 is about 236.8411583198.

The spelling of 13285305 in words is "thirteen million, two hundred eighty-five thousand, three hundred five".