12166841 has 2 divisors, whose sum is σ = 12166842. Its totient is φ = 12166840.

The previous prime is 12166813. The next prime is 12166853. The reversal of 12166841 is 14866121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 606841 = 3400^2 + 779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12166841 is a prime.

It is not a weakly prime, because it can be changed into another prime (12166801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6083420 + 6083421.

It is an arithmetic number, because the mean of its divisors is an integer number (6083421).

Almost surely, 2^12166841 is an apocalyptic number.

It is an amenable number.

12166841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12166841 is an equidigital number, since it uses as much as digits as its factorization.

12166841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 12166841 is about 3488.0999125598. The cubic root of 12166841 is about 229.9989981053.

The spelling of 12166841 in words is "twelve million, one hundred sixty-six thousand, eight hundred forty-one".