12304143 has 10 divisors (see below), whose sum is σ = 18380384. Its totient is φ = 8202708.

The previous prime is 12304139. The next prime is 12304163. The reversal of 12304143 is 34140321.

It is not a de Polignac number, because 12304143 - 2² = 12304139 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 (12304133) 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 9 ways as a sum of consecutive naturals, for example, 75871 + ... + 76032.

Almost surely, 2^12304143 is an apocalyptic number.

12304143 is a deficient number, since it is larger than the sum of its proper divisors (6076241).

12304143 is an equidigital number, since it uses as much as digits as its factorization.

12304143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151915 (or 151906 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12304143 is about 3507.7261865773. The cubic root of 12304143 is about 230.8609383967.

Adding to 12304143 its reverse (34140321), we get a palindrome (46444464).

The spelling of 12304143 in words is "twelve million, three hundred four thousand, one hundred forty-three".