12243237 has 4 divisors (see below), whose sum is σ = 16324320. Its totient is φ = 8162156.

The previous prime is 12243229. The next prime is 12243241. The reversal of 12243237 is 73234221.

12243237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12243237 - 2³ = 12243229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243227) 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, 2040537 + ... + 2040542.

It is an arithmetic number, because the mean of its divisors is an integer number (4081080).

Almost surely, 2^12243237 is an apocalyptic number.

It is an amenable number.

12243237 is a deficient number, since it is larger than the sum of its proper divisors (4081083).

12243237 is an equidigital number, since it uses as much as digits as its factorization.

12243237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081082.

The product of its digits is 2016, while the sum is 24.

The square root of 12243237 is about 3499.0337237586. The cubic root of 12243237 is about 230.4793845071.

Adding to 12243237 its reverse (73234221), we get a palindrome (85477458).

The spelling of 12243237 in words is "twelve million, two hundred forty-three thousand, two hundred thirty-seven".