12243479 has 4 divisors (see below), whose sum is σ = 12325800. Its totient is φ = 12161160.

The previous prime is 12243457. The next prime is 12243541. The reversal of 12243479 is 97434221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12243479 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 (12243079) 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 3 ways as a sum of consecutive naturals, for example, 40937 + ... + 41234.

It is an arithmetic number, because the mean of its divisors is an integer number (3081450).

Almost surely, 2^12243479 is an apocalyptic number.

12243479 is a deficient number, since it is larger than the sum of its proper divisors (82321).

12243479 is an equidigital number, since it uses as much as digits as its factorization.

12243479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82320.

The product of its digits is 12096, while the sum is 32.

The square root of 12243479 is about 3499.0683045634. The cubic root of 12243479 is about 230.4809030500.

The spelling of 12243479 in words is "twelve million, two hundred forty-three thousand, four hundred seventy-nine".