12855311 has 4 divisors (see below), whose sum is σ = 14691792. Its totient is φ = 11018832.

The previous prime is 12855307. The next prime is 12855329. The reversal of 12855311 is 11355821.

It is a happy number.

12855311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11355821 = 61 ⋅186161.

It is a cyclic number.

It is not a de Polignac number, because 12855311 - 2² = 12855307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855341) 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, 918230 + ... + 918243.

It is an arithmetic number, because the mean of its divisors is an integer number (3672948).

Almost surely, 2^12855311 is an apocalyptic number.

12855311 is a deficient number, since it is larger than the sum of its proper divisors (1836481).

12855311 is an equidigital number, since it uses as much as digits as its factorization.

12855311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836480.

The product of its digits is 1200, while the sum is 26.

The square root of 12855311 is about 3585.4303786296. The cubic root of 12855311 is about 234.2578731151.

The spelling of 12855311 in words is "twelve million, eight hundred fifty-five thousand, three hundred eleven".