13885065 has 24 divisors (see below), whose sum is σ = 24323208. Its totient is φ = 7326720.

The previous prime is 13885061. The next prime is 13885097. The reversal of 13885065 is 56058831.

It can be written as a sum of positive squares in 4 ways, for example, as 24336 + 13860729 = 156^2 + 3723^2 .

It is not a de Polignac number, because 13885065 - 2² = 13885061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13885061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2775 + ... + 5955.

It is an arithmetic number, because the mean of its divisors is an integer number (1013467).

Almost surely, 2^13885065 is an apocalyptic number.

13885065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13885065 is a deficient number, since it is larger than the sum of its proper divisors (10438143).

13885065 is a wasteful number, since it uses less digits than its factorization.

13885065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289 (or 3286 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 13885065 is about 3726.2668986534. The cubic root of 13885065 is about 240.3528663513.

The spelling of 13885065 in words is "thirteen million, eight hundred eighty-five thousand, sixty-five".