12105982 has 16 divisors (see below), whose sum is σ = 20797920. Its totient is φ = 5177088.

The previous prime is 12105979. The next prime is 12106009. The reversal of 12105982 is 28950121.

It is a self number, because there is not a number n which added to its sum of digits gives 12105982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11494 + ... + 12502.

It is an arithmetic number, because the mean of its divisors is an integer number (1299870).

Almost surely, 2^12105982 is an apocalyptic number.

12105982 is a deficient number, since it is larger than the sum of its proper divisors (8691938).

12105982 is a wasteful number, since it uses less digits than its factorization.

12105982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 12105982 is about 3479.3651719818. The cubic root of 12105982 is about 229.6148690124.

The spelling of 12105982 in words is "twelve million, one hundred five thousand, nine hundred eighty-two".