12855775 has 12 divisors (see below), whose sum is σ = 16016832. Its totient is φ = 10235840.

The previous prime is 12855767. The next prime is 12855797. The reversal of 12855775 is 57755821.

12855775 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12855775 - 2³ = 12855767 is a prime.

It is a Duffinian number.

Its product of digits (98000) is a multiple of the sum of its prime factors (2450).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4722 + ... + 6928.

It is an arithmetic number, because the mean of its divisors is an integer number (1334736).

Almost surely, 2^12855775 is an apocalyptic number.

12855775 is a deficient number, since it is larger than the sum of its proper divisors (3161057).

12855775 is a wasteful number, since it uses less digits than its factorization.

12855775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2445 counting only the distinct ones).

The product of its digits is 98000, while the sum is 40.

The square root of 12855775 is about 3585.4950843642. The cubic root of 12855775 is about 234.2606915182.

The spelling of 12855775 in words is "twelve million, eight hundred fifty-five thousand, seven hundred seventy-five".