12240233 has 4 divisors (see below), whose sum is σ = 12662340. Its totient is φ = 11818128.

The previous prime is 12240227. The next prime is 12240271. The reversal of 12240233 is 33204221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33204221 = 571 ⋅58151.

It can be written as a sum of positive squares in 2 ways, for example, as 9560464 + 2679769 = 3092^2 + 1637^2 .

It is a cyclic number.

It is not a de Polignac number, because 12240233 - 2⁸ = 12239977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240203) 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, 211010 + ... + 211067.

It is an arithmetic number, because the mean of its divisors is an integer number (3165585).

Almost surely, 2^12240233 is an apocalyptic number.

It is an amenable number.

12240233 is a deficient number, since it is larger than the sum of its proper divisors (422107).

12240233 is an equidigital number, since it uses as much as digits as its factorization.

12240233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422106.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12240233 is about 3498.6044360573. The cubic root of 12240233 is about 230.4605328285.

Adding to 12240233 its reverse (33204221), we get a palindrome (45444454).

The spelling of 12240233 in words is "twelve million, two hundred forty thousand, two hundred thirty-three".