12243271 has 6 divisors (see below), whose sum is σ = 12345080. Its totient is φ = 12142236.

The previous prime is 12243251. The next prime is 12243289. The reversal of 12243271 is 17234221.

It is not a de Polignac number, because 12243271 - 2¹¹ = 12241223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243221) 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 5 ways as a sum of consecutive naturals, for example, 27670 + ... + 28108.

Almost surely, 2^12243271 is an apocalyptic number.

12243271 is a deficient number, since it is larger than the sum of its proper divisors (101809).

12243271 is an frugal number, since it uses more digits than its factorization.

12243271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 606 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 12243271 is about 3499.0385822394. The cubic root of 12243271 is about 230.4795978573.

Adding to 12243271 its reverse (17234221), we get a palindrome (29477492).

The spelling of 12243271 in words is "twelve million, two hundred forty-three thousand, two hundred seventy-one".