12105927 has 12 divisors (see below), whose sum is σ = 17613960. Its totient is φ = 8011728.

The previous prime is 12105923. The next prime is 12105941. The reversal of 12105927 is 72950121.

It is not a de Polignac number, because 12105927 - 2² = 12105923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12105927.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3588 + ... + 6089.

It is an arithmetic number, because the mean of its divisors is an integer number (1467830).

Almost surely, 2^12105927 is an apocalyptic number.

12105927 is a deficient number, since it is larger than the sum of its proper divisors (5508033).

12105927 is a wasteful number, since it uses less digits than its factorization.

12105927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9822 (or 9819 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12105927 is about 3479.3572682322. The cubic root of 12105927 is about 229.6145212825.

The spelling of 12105927 in words is "twelve million, one hundred five thousand, nine hundred twenty-seven".