12286289 has 2 divisors, whose sum is σ = 12286290. Its totient is φ = 12286288.

The previous prime is 12286279. The next prime is 12286333. The reversal of 12286289 is 98268221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6210064 + 6076225 = 2492^2 + 2465^2 .

It is an emirp because it is prime and its reverse (98268221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12286289 - 2⁸ = 12286033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12286249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6143144 + 6143145.

It is an arithmetic number, because the mean of its divisors is an integer number (6143145).

Almost surely, 2^12286289 is an apocalyptic number.

It is an amenable number.

12286289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12286289 is an equidigital number, since it uses as much as digits as its factorization.

12286289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 12286289 is about 3505.1803091995. The cubic root of 12286289 is about 230.7492202962.

The spelling of 12286289 in words is "twelve million, two hundred eighty-six thousand, two hundred eighty-nine".