12105996 has 48 divisors (see below), whose sum is σ = 33331200. Its totient is φ = 3346560.

The previous prime is 12105979. The next prime is 12106009. The reversal of 12105996 is 69950121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (694400).

Almost surely, 2^12105996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12105996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16665600).

12105996 is an abundant number, since it is smaller than the sum of its proper divisors (21225204).

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

12105996 is a wasteful number, since it uses less digits than its factorization.

12105996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694 (or 4692 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 12105996 is about 3479.3671838425. The cubic root of 12105996 is about 229.6149575253.

The spelling of 12105996 in words is "twelve million, one hundred five thousand, nine hundred ninety-six".