12242903 has 4 divisors (see below), whose sum is σ = 12410688. Its totient is φ = 12075120.

The previous prime is 12242899. The next prime is 12242911. The reversal of 12242903 is 30924221.

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

It is a cyclic number.

It is not a de Polignac number, because 12242903 - 2² = 12242899 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 (12242933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83783 + ... + 83928.

It is an arithmetic number, because the mean of its divisors is an integer number (3102672).

Almost surely, 2^12242903 is an apocalyptic number.

12242903 is a deficient number, since it is larger than the sum of its proper divisors (167785).

12242903 is an equidigital number, since it uses as much as digits as its factorization.

12242903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167784.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12242903 is about 3498.9859959708. The cubic root of 12242903 is about 230.4772886339.

The spelling of 12242903 in words is "twelve million, two hundred forty-two thousand, nine hundred three".