12287233 has 4 divisors (see below), whose sum is σ = 14042560. Its totient is φ = 10531908.

The previous prime is 12287201. The next prime is 12287269. The reversal of 12287233 is 33278221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33278221 = 31 ⋅1073491.

It is a cyclic number.

It is not a de Polignac number, because 12287233 - 2⁵ = 12287201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12287273) 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, 877653 + ... + 877666.

It is an arithmetic number, because the mean of its divisors is an integer number (3510640).

Almost surely, 2^12287233 is an apocalyptic number.

It is an amenable number.

12287233 is a deficient number, since it is larger than the sum of its proper divisors (1755327).

12287233 is an equidigital number, since it uses as much as digits as its factorization.

12287233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755326.

The product of its digits is 4032, while the sum is 28.

The square root of 12287233 is about 3505.3149644504. The cubic root of 12287233 is about 230.7551299105.

The spelling of 12287233 in words is "twelve million, two hundred eighty-seven thousand, two hundred thirty-three".