13085855 has 4 divisors (see below), whose sum is σ = 15703032. Its totient is φ = 10468680.

The previous prime is 13085843. The next prime is 13085857. The reversal of 13085855 is 55858031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13085855 - 2⁶ = 13085791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13085857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308581 + ... + 1308590.

It is an arithmetic number, because the mean of its divisors is an integer number (3925758).

Almost surely, 2^13085855 is an apocalyptic number.

13085855 is a deficient number, since it is larger than the sum of its proper divisors (2617177).

13085855 is an equidigital number, since it uses as much as digits as its factorization.

13085855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617176.

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 13085855 is about 3617.4376290408. The cubic root of 13085855 is about 235.6499586589.

The spelling of 13085855 in words is "thirteen million, eighty-five thousand, eight hundred fifty-five".