234305143 has 2 divisors, whose sum is σ = 234305144. Its totient is φ = 234305142.

The previous prime is 234305129. The next prime is 234305147. The reversal of 234305143 is 341503432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234305143 - 2⁵ = 234305111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234305147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117152571 + 117152572.

It is an arithmetic number, because the mean of its divisors is an integer number (117152572).

Almost surely, 2^234305143 is an apocalyptic number.

234305143 is a deficient number, since it is larger than the sum of its proper divisors (1).

234305143 is an equidigital number, since it uses as much as digits as its factorization.

234305143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 234305143 is about 15307.0292022979. The cubic root of 234305143 is about 616.4917566106.

Adding to 234305143 its reverse (341503432), we get a palindrome (575808575).

The spelling of 234305143 in words is "two hundred thirty-four million, three hundred five thousand, one hundred forty-three".