12855012 has 24 divisors (see below), whose sum is σ = 30084096. Its totient is φ = 4272288.

The previous prime is 12854971. The next prime is 12855013. The reversal of 12855012 is 21055821.

It is not an unprimeable number, because it can be changed into a prime (12855013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3198 + ... + 5994.

It is an arithmetic number, because the mean of its divisors is an integer number (1253504).

Almost surely, 2^12855012 is an apocalyptic number.

12855012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12855012 is an abundant number, since it is smaller than the sum of its proper divisors (17229084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12855012 is a wasteful number, since it uses less digits than its factorization.

12855012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 12855012 is about 3585.3886818586. The cubic root of 12855012 is about 234.2560569099.

The spelling of 12855012 in words is "twelve million, eight hundred fifty-five thousand, twelve".