12238243 has 4 divisors (see below), whose sum is σ = 12260248. Its totient is φ = 12216240.

The previous prime is 12238241. The next prime is 12238253. The reversal of 12238243 is 34283221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34283221 = 7 ⋅4897603.

It is a cyclic number.

It is not a de Polignac number, because 12238243 - 2¹ = 12238241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12238241) 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, 10146 + ... + 11287.

It is an arithmetic number, because the mean of its divisors is an integer number (3065062).

Almost surely, 2^12238243 is an apocalyptic number.

12238243 is a deficient number, since it is larger than the sum of its proper divisors (22005).

12238243 is an equidigital number, since it uses as much as digits as its factorization.

12238243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22004.

The product of its digits is 2304, while the sum is 25.

The square root of 12238243 is about 3498.3200253836. The cubic root of 12238243 is about 230.4480428344.

The spelling of 12238243 in words is "twelve million, two hundred thirty-eight thousand, two hundred forty-three".