12132166 has 4 divisors (see below), whose sum is σ = 18198252. Its totient is φ = 6066082.

The previous prime is 12132151. The next prime is 12132217. The reversal of 12132166 is 66123121.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3033040 + ... + 3033043.

It is an arithmetic number, because the mean of its divisors is an integer number (4549563).

Almost surely, 2^12132166 is an apocalyptic number.

12132166 is a deficient number, since it is larger than the sum of its proper divisors (6066086).

12132166 is an equidigital number, since it uses as much as digits as its factorization.

12132166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066085.

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

The square root of 12132166 is about 3483.1258949398. The cubic root of 12132166 is about 229.7802942904.

Adding to 12132166 its reverse (66123121), we get a palindrome (78255287).

The spelling of 12132166 in words is "twelve million, one hundred thirty-two thousand, one hundred sixty-six".