230543543 has 4 divisors (see below), whose sum is σ = 230965560. Its totient is φ = 230121528.

The previous prime is 230543531. The next prime is 230543623. The reversal of 230543543 is 345345032.

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 230543543 - 2¹⁸ = 230281399 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 (230543143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210188 + ... + 211281.

It is an arithmetic number, because the mean of its divisors is an integer number (57741390).

Almost surely, 2^230543543 is an apocalyptic number.

230543543 is a deficient number, since it is larger than the sum of its proper divisors (422017).

230543543 is an equidigital number, since it uses as much as digits as its factorization.

230543543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422016.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 230543543 is about 15183.6603953065. The cubic root of 230543543 is about 613.1748323954.

Adding to 230543543 its reverse (345345032), we get a palindrome (575888575).

The spelling of 230543543 in words is "two hundred thirty million, five hundred forty-three thousand, five hundred forty-three".