12855078 has 32 divisors (see below), whose sum is σ = 28861920. Its totient is φ = 4240800.

The previous prime is 12855061. The next prime is 12855103. The reversal of 12855078 is 87055821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4276 + ... + 6632.

It is an arithmetic number, because the mean of its divisors is an integer number (901935).

Almost surely, 2^12855078 is an apocalyptic number.

12855078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12855078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14430960).

12855078 is an abundant number, since it is smaller than the sum of its proper divisors (16006842).

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

12855078 is a wasteful number, since it uses less digits than its factorization.

12855078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 12855078 is about 3585.3978858699. The cubic root of 12855078 is about 234.2564578138.

The spelling of 12855078 in words is "twelve million, eight hundred fifty-five thousand, seventy-eight".