12105994 has 8 divisors (see below), whose sum is σ = 18214848. Its totient is φ = 6034380.

The previous prime is 12105979. The next prime is 12106009. The reversal of 12105994 is 49950121.

It is an interprime number because it is at equal distance from previous prime (12105979) and next prime (12106009).

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 8482 + ... + 9805.

It is an arithmetic number, because the mean of its divisors is an integer number (2276856).

Almost surely, 2^12105994 is an apocalyptic number.

12105994 is a deficient number, since it is larger than the sum of its proper divisors (6108854).

12105994 is a wasteful number, since it uses less digits than its factorization.

12105994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 12105994 is about 3479.3668964339. The cubic root of 12105994 is about 229.6149448806.

The spelling of 12105994 in words is "twelve million, one hundred five thousand, nine hundred ninety-four".