12009167 has 2 divisors, whose sum is σ = 12009168. Its totient is φ = 12009166.

The previous prime is 12009149. The next prime is 12009199. The reversal of 12009167 is 76190021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12009167 - 2²⁰ = 10960591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12009367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004583 + 6004584.

It is an arithmetic number, because the mean of its divisors is an integer number (6004584).

Almost surely, 2^12009167 is an apocalyptic number.

12009167 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009167 is an equidigital number, since it uses as much as digits as its factorization.

12009167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 12009167 is about 3465.4245050210. The cubic root of 12009167 is about 229.0011314247.

Adding to 12009167 its reverse (76190021), we get a palindrome (88199188).

The spelling of 12009167 in words is "twelve million, nine thousand, one hundred sixty-seven".