12855136 has 24 divisors (see below), whose sum is σ = 28924560. Its totient is φ = 5509248.

The previous prime is 12855131. The next prime is 12855187. The reversal of 12855136 is 63155821.

It is a junction number, because it is equal to n+sod(n) for n = 12855098 and 12855107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855131) 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, 28471 + ... + 28918.

It is an arithmetic number, because the mean of its divisors is an integer number (1205190).

Almost surely, 2^12855136 is an apocalyptic number.

12855136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12855136 is an abundant number, since it is smaller than the sum of its proper divisors (16069424).

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

12855136 is an equidigital number, since it uses as much as digits as its factorization.

12855136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57406 (or 57398 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 12855136 is about 3585.4059742238. The cubic root of 12855136 is about 234.2568101222.

The spelling of 12855136 in words is "twelve million, eight hundred fifty-five thousand, one hundred thirty-six".