12331855 has 16 divisors (see below), whose sum is σ = 15667200. Its totient is φ = 9292320.

The previous prime is 12331853. The next prime is 12331859. The reversal of 12331855 is 55813321.

It is not a de Polignac number, because 12331855 - 2¹ = 12331853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25506 + ... + 25984.

It is an arithmetic number, because the mean of its divisors is an integer number (979200).

Almost surely, 2^12331855 is an apocalyptic number.

12331855 is a deficient number, since it is larger than the sum of its proper divisors (3335345).

12331855 is a wasteful number, since it uses less digits than its factorization.

12331855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 3600, while the sum is 28.

The square root of 12331855 is about 3511.6741021911. The cubic root of 12331855 is about 231.0341272518.

The spelling of 12331855 in words is "twelve million, three hundred thirty-one thousand, eight hundred fifty-five".