12855042 has 12 divisors (see below), whose sum is σ = 27852630. Its totient is φ = 4285008.

The previous prime is 12855041. The next prime is 12855053. The reversal of 12855042 is 24055821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6610041 + 6245001 = 2571^2 + 2499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12854997 and 12855015.

It is not an unprimeable number, because it can be changed into a prime (12855041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357067 + ... + 357102.

Almost surely, 2^12855042 is an apocalyptic number.

12855042 is an abundant number, since it is smaller than the sum of its proper divisors (14997588).

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

12855042 is a wasteful number, since it uses less digits than its factorization.

12855042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714177 (or 714174 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 12855042 is about 3585.3928655030. The cubic root of 12855042 is about 234.2562391392.

The spelling of 12855042 in words is "twelve million, eight hundred fifty-five thousand, forty-two".