12008197 has 2 divisors, whose sum is σ = 12008198. Its totient is φ = 12008196.

The previous prime is 12008189. The next prime is 12008201. The reversal of 12008197 is 79180021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11826721 + 181476 = 3439^2 + 426^2 .

It is a cyclic number.

It is not a de Polignac number, because 12008197 - 2³ = 12008189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12008107) 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 as a sum of consecutive naturals, namely, 6004098 + 6004099.

It is an arithmetic number, because the mean of its divisors is an integer number (6004099).

Almost surely, 2^12008197 is an apocalyptic number.

It is an amenable number.

12008197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008197 is an equidigital number, since it uses as much as digits as its factorization.

12008197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 12008197 is about 3465.2845482009. The cubic root of 12008197 is about 228.9949656604.

The spelling of 12008197 in words is "twelve million, eight thousand, one hundred ninety-seven".