13805085 has 16 divisors (see below), whose sum is σ = 25243776. Its totient is φ = 6310848.

The previous prime is 13805059. The next prime is 13805087. The reversal of 13805085 is 58050831.

It is a happy number.

13805085 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13805085 - 2⁵ = 13805053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805087) 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, 65634 + ... + 65843.

It is an arithmetic number, because the mean of its divisors is an integer number (1577736).

Almost surely, 2^13805085 is an apocalyptic number.

13805085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13805085 is a deficient number, since it is larger than the sum of its proper divisors (11438691).

13805085 is a wasteful number, since it uses less digits than its factorization.

13805085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131492.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 13805085 is about 3715.5194791577. The cubic root of 13805085 is about 239.8904882319.

The spelling of 13805085 in words is "thirteen million, eight hundred five thousand, eighty-five".