12039289 has 2 divisors, whose sum is σ = 12039290. Its totient is φ = 12039288.

The previous prime is 12039283. The next prime is 12039311. The reversal of 12039289 is 98293021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6786025 + 5253264 = 2605^2 + 2292^2 .

It is a cyclic number.

It is not a de Polignac number, because 12039289 - 2¹⁵ = 12006521 is a prime.

It is not a weakly prime, because it can be changed into another prime (12039283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6019644 + 6019645.

It is an arithmetic number, because the mean of its divisors is an integer number (6019645).

Almost surely, 2^12039289 is an apocalyptic number.

It is an amenable number.

12039289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12039289 is an equidigital number, since it uses as much as digits as its factorization.

12039289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12039289 is about 3469.7678596702. The cubic root of 12039289 is about 229.1924356404.

The spelling of 12039289 in words is "twelve million, thirty-nine thousand, two hundred eighty-nine".