304424143 has 2 divisors, whose sum is σ = 304424144. Its totient is φ = 304424142.

The previous prime is 304424119. The next prime is 304424149. The reversal of 304424143 is 341424403.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304424143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304424149) 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 as a sum of consecutive naturals, namely, 152212071 + 152212072.

It is an arithmetic number, because the mean of its divisors is an integer number (152212072).

Almost surely, 2^304424143 is an apocalyptic number.

304424143 is a deficient number, since it is larger than the sum of its proper divisors (1).

304424143 is an equidigital number, since it uses as much as digits as its factorization.

304424143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 304424143 is about 17447.7546692977. The cubic root of 304424143 is about 672.7076462018.

Adding to 304424143 its reverse (341424403), we get a palindrome (645848546).

The spelling of 304424143 in words is "three hundred four million, four hundred twenty-four thousand, one hundred forty-three".