12105928 has 16 divisors (see below), whose sum is σ = 22757760. Its totient is φ = 6037200.

The previous prime is 12105923. The next prime is 12105941. The reversal of 12105928 is 82950121.

It is a junction number, because it is equal to n+sod(n) for n = 12105896 and 12105905.

It is not an unprimeable number, because it can be changed into a prime (12105923) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1693 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (1422360).

Almost surely, 2^12105928 is an apocalyptic number.

It is an amenable number.

12105928 is a deficient number, since it is larger than the sum of its proper divisors (10651832).

12105928 is a wasteful number, since it uses less digits than its factorization.

12105928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948 (or 3944 counting only the distinct ones).

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

The square root of 12105928 is about 3479.3574119369. The cubic root of 12105928 is about 229.6145276048.

The spelling of 12105928 in words is "twelve million, one hundred five thousand, nine hundred twenty-eight".