12105894 has 16 divisors (see below), whose sum is σ = 24403968. Its totient is φ = 4003272.

The previous prime is 12105893. The next prime is 12105917. The reversal of 12105894 is 49850121.

It is a happy number.

12105894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7182 + ... + 8705.

It is an arithmetic number, because the mean of its divisors is an integer number (1525248).

Almost surely, 2^12105894 is an apocalyptic number.

12105894 is an abundant number, since it is smaller than the sum of its proper divisors (12298074).

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

12105894 is a wasteful number, since it uses less digits than its factorization.

12105894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16019.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12105894 is about 3479.3525259738. The cubic root of 12105894 is about 229.6143126440.

The spelling of 12105894 in words is "twelve million, one hundred five thousand, eight hundred ninety-four".