12305233 has 4 divisors (see below), whose sum is σ = 12702208. Its totient is φ = 11908260.

The previous prime is 12305231. The next prime is 12305239. The reversal of 12305233 is 33250321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12305233 - 2¹ = 12305231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12305233.

It is not an unprimeable number, because it can be changed into a prime (12305231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198441 + ... + 198502.

It is an arithmetic number, because the mean of its divisors is an integer number (3175552).

Almost surely, 2^12305233 is an apocalyptic number.

It is an amenable number.

12305233 is a deficient number, since it is larger than the sum of its proper divisors (396975).

12305233 is an equidigital number, since it uses as much as digits as its factorization.

12305233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396974.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 12305233 is about 3507.8815544428. The cubic root of 12305233 is about 230.8677553687.

Adding to 12305233 its reverse (33250321), we get a palindrome (45555554).

The spelling of 12305233 in words is "twelve million, three hundred five thousand, two hundred thirty-three".