12166123 has 4 divisors (see below), whose sum is σ = 12213720. Its totient is φ = 12118528.

The previous prime is 12166073. The next prime is 12166139. The reversal of 12166123 is 32166121.

12166123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12166123 is a prime.

It is a super-2 number, since 2×12166123² = 296029097702258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12166094 and 12166103.

It is not an unprimeable number, because it can be changed into a prime (12166163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23413 + ... + 23926.

It is an arithmetic number, because the mean of its divisors is an integer number (3053430).

Almost surely, 2^12166123 is an apocalyptic number.

12166123 is a deficient number, since it is larger than the sum of its proper divisors (47597).

12166123 is an equidigital number, since it uses as much as digits as its factorization.

12166123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47596.

The product of its digits is 432, while the sum is 22.

The square root of 12166123 is about 3487.9969896776. The cubic root of 12166123 is about 229.9944737173.

The spelling of 12166123 in words is "twelve million, one hundred sixty-six thousand, one hundred twenty-three".