12166023 has 16 divisors (see below), whose sum is σ = 17360000. Its totient is φ = 7555680.

The previous prime is 12166019. The next prime is 12166027. The reversal of 12166023 is 32066121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12166019) and next prime (12166027).

It is not a de Polignac number, because 12166023 - 2² = 12166019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166027) 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 15 ways as a sum of consecutive naturals, for example, 1728 + ... + 5226.

It is an arithmetic number, because the mean of its divisors is an integer number (1085000).

Almost surely, 2^12166023 is an apocalyptic number.

12166023 is a deficient number, since it is larger than the sum of its proper divisors (5193977).

12166023 is a wasteful number, since it uses less digits than its factorization.

12166023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12166023 is about 3487.9826547734. The cubic root of 12166023 is about 229.9938435655.

The spelling of 12166023 in words is "twelve million, one hundred sixty-six thousand, twenty-three".