304231143 has 16 divisors (see below), whose sum is σ = 427034880. Its totient is φ = 192280704.

The previous prime is 304231127. The next prime is 304231153. The reversal of 304231143 is 341132403.

It is not a de Polignac number, because 304231143 - 2⁴ = 304231127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304231153) 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 15 ways as a sum of consecutive naturals, for example, 11713 + ... + 27306.

It is an arithmetic number, because the mean of its divisors is an integer number (26689680).

Almost surely, 2^304231143 is an apocalyptic number.

304231143 is a deficient number, since it is larger than the sum of its proper divisors (122803737).

304231143 is a wasteful number, since it uses less digits than its factorization.

304231143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39158.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 304231143 is about 17442.2229947905. Note that the first 3 decimals coincide. The cubic root of 304231143 is about 672.5654542134.

Adding to 304231143 its reverse (341132403), we get a palindrome (645363546).

The spelling of 304231143 in words is "three hundred four million, two hundred thirty-one thousand, one hundred forty-three".