12372166 has 4 divisors (see below), whose sum is σ = 18558252. Its totient is φ = 6186082.

The previous prime is 12372163. The next prime is 12372167. The reversal of 12372166 is 66127321.

12372166 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 66127321 = 13 ⋅5086717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12372163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3093040 + ... + 3093043.

It is an arithmetic number, because the mean of its divisors is an integer number (4639563).

Almost surely, 2^12372166 is an apocalyptic number.

12372166 is a deficient number, since it is larger than the sum of its proper divisors (6186086).

12372166 is an equidigital number, since it uses as much as digits as its factorization.

12372166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186085.

The product of its digits is 3024, while the sum is 28.

The square root of 12372166 is about 3517.4089895831. The cubic root of 12372166 is about 231.2855921842.

Adding to 12372166 its reverse (66127321), we get a palindrome (78499487).

It can be divided in two parts, 1237 and 2166, that added together give a triangular number (3403 = T₈₂).

The spelling of 12372166 in words is "twelve million, three hundred seventy-two thousand, one hundred sixty-six".