12235881 has 16 divisors (see below), whose sum is σ = 18785664. Its totient is φ = 6939264.

The previous prime is 12235849. The next prime is 12235889. The reversal of 12235881 is 18853221.

12235881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12235881 - 2⁵ = 12235849 is a prime.

It is a super-2 number, since 2×12235881² = 299433567692322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12235889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (1174104).

Almost surely, 2^12235881 is an apocalyptic number.

It is an amenable number.

12235881 is a deficient number, since it is larger than the sum of its proper divisors (6549783).

12235881 is a wasteful number, since it uses less digits than its factorization.

12235881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400.

The product of its digits is 3840, while the sum is 30.

The square root of 12235881 is about 3497.9824184807. The cubic root of 12235881 is about 230.4332162698.

The spelling of 12235881 in words is "twelve million, two hundred thirty-five thousand, eight hundred eighty-one".