13805169 has 32 divisors (see below), whose sum is σ = 21897216. Its totient is φ = 7573440.

The previous prime is 13805161. The next prime is 13805179. The reversal of 13805169 is 96150831.

13805169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13805169 - 2³ = 13805161 is a prime.

It is a super-2 number, since 2×13805169² = 381165382237122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13805161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69979 + ... + 70175.

It is an arithmetic number, because the mean of its divisors is an integer number (684288).

Almost surely, 2^13805169 is an apocalyptic number.

It is an amenable number.

13805169 is a deficient number, since it is larger than the sum of its proper divisors (8092047).

13805169 is a wasteful number, since it uses less digits than its factorization.

13805169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 13805169 is about 3715.5307830780. The cubic root of 13805169 is about 239.8909747860.

The spelling of 13805169 in words is "thirteen million, eight hundred five thousand, one hundred sixty-nine".