12001189 has 2 divisors, whose sum is σ = 12001190. Its totient is φ = 12001188.

The previous prime is 12001177. The next prime is 12001207. The reversal of 12001189 is 98110021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 1340964 = 3265^2 + 1158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000594 + 6000595.

It is an arithmetic number, because the mean of its divisors is an integer number (6000595).

Almost surely, 2^12001189 is an apocalyptic number.

It is an amenable number.

12001189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001189 is an equidigital number, since it uses as much as digits as its factorization.

12001189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 12001189 is about 3464.2732282544. The cubic root of 12001189 is about 228.9504097345.

The spelling of 12001189 in words is "twelve million, one thousand, one hundred eighty-nine".