12166097 has 4 divisors (see below), whose sum is σ = 12395700. Its totient is φ = 11936496.

The previous prime is 12166073. The next prime is 12166139. The reversal of 12166097 is 79066121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79066121 = 43 ⋅1838747.

It can be written as a sum of positive squares in 2 ways, for example, as 9634816 + 2531281 = 3104^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 12166097 - 2¹² = 12162001 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

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 3 ways as a sum of consecutive naturals, for example, 114722 + ... + 114827.

It is an arithmetic number, because the mean of its divisors is an integer number (3098925).

Almost surely, 2^12166097 is an apocalyptic number.

It is an amenable number.

12166097 is a deficient number, since it is larger than the sum of its proper divisors (229603).

12166097 is an equidigital number, since it uses as much as digits as its factorization.

12166097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229602.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 12166097 is about 3487.9932626082. The cubic root of 12166097 is about 229.9943098781.

The spelling of 12166097 in words is "twelve million, one hundred sixty-six thousand, ninety-seven".