12009233 has 2 divisors, whose sum is σ = 12009234. Its totient is φ = 12009232.

The previous prime is 12009229. The next prime is 12009329. The reversal of 12009233 is 33290021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10679824 + 1329409 = 3268^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 12009233 - 2² = 12009229 is a prime.

It is not a weakly prime, because it can be changed into another prime (12009223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004616 + 6004617.

It is an arithmetic number, because the mean of its divisors is an integer number (6004617).

Almost surely, 2^12009233 is an apocalyptic number.

It is an amenable number.

12009233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12009233 is an equidigital number, since it uses as much as digits as its factorization.

12009233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 12009233 is about 3465.4340276508. The cubic root of 12009233 is about 229.0015509388.

Adding to 12009233 its reverse (33290021), we get a palindrome (45299254).

The spelling of 12009233 in words is "twelve million, nine thousand, two hundred thirty-three".