12243073 has 4 divisors (see below), whose sum is σ = 12250288. Its totient is φ = 12235860.

The previous prime is 12243071. The next prime is 12243079. The reversal of 12243073 is 37034221.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12243073 - 2¹ = 12243071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12243071) 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, 490 + ... + 4972.

It is an arithmetic number, because the mean of its divisors is an integer number (3062572).

Almost surely, 2^12243073 is an apocalyptic number.

It is an amenable number.

12243073 is a deficient number, since it is larger than the sum of its proper divisors (7215).

12243073 is an equidigital number, since it uses as much as digits as its factorization.

12243073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7214.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 12243073 is about 3499.0102886388. The cubic root of 12243073 is about 230.4783554005.

Adding to 12243073 its reverse (37034221), we get a palindrome (49277294).

The spelling of 12243073 in words is "twelve million, two hundred forty-three thousand, seventy-three".