12660233 has 4 divisors (see below), whose sum is σ = 12757008. Its totient is φ = 12563460.

The previous prime is 12660229. The next prime is 12660283. The reversal of 12660233 is 33206621.

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 12660233 - 2² = 12660229 is a prime.

It is a super-2 number, since 2×12660233² = 320562999228578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12660199 and 12660208.

It is not an unprimeable number, because it can be changed into a prime (12660203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48191 + ... + 48452.

It is an arithmetic number, because the mean of its divisors is an integer number (3189252).

Almost surely, 2^12660233 is an apocalyptic number.

It is an amenable number.

12660233 is a deficient number, since it is larger than the sum of its proper divisors (96775).

12660233 is an equidigital number, since it uses as much as digits as its factorization.

12660233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96774.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 12660233 is about 3558.1221170724. The cubic root of 12660233 is about 233.0668820137.

Adding to 12660233 its reverse (33206621), we get a palindrome (45866854).

The spelling of 12660233 in words is "twelve million, six hundred sixty thousand, two hundred thirty-three".