12243243 has 8 divisors (see below), whose sum is σ = 16493008. Its totient is φ = 8077824.

The previous prime is 12243241. The next prime is 12243251. The reversal of 12243243 is 34234221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12243243 - 2¹ = 12243241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12243241) 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 7 ways as a sum of consecutive naturals, for example, 20746 + ... + 21327.

It is an arithmetic number, because the mean of its divisors is an integer number (2061626).

Almost surely, 2^12243243 is an apocalyptic number.

12243243 is a deficient number, since it is larger than the sum of its proper divisors (4249765).

12243243 is an equidigital number, since it uses as much as digits as its factorization.

12243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42173.

The product of its digits is 1152, while the sum is 21.

The square root of 12243243 is about 3499.0345811381. The cubic root of 12243243 is about 230.4794221571.

Adding to 12243243 its reverse (34234221), we get a palindrome (46477464).

It can be divided in two parts, 122 and 43243, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 12243243 in words is "twelve million, two hundred forty-three thousand, two hundred forty-three".