230512543 has 4 divisors (see below), whose sum is σ = 230543368. Its totient is φ = 230481720.

The previous prime is 230512531. The next prime is 230512567. The reversal of 230512543 is 345215032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 230512543 - 2⁹ = 230512031 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 (230510543) 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, 3733 + ... + 21793.

It is an arithmetic number, because the mean of its divisors is an integer number (57635842).

Almost surely, 2^230512543 is an apocalyptic number.

230512543 is a deficient number, since it is larger than the sum of its proper divisors (30825).

230512543 is a wasteful number, since it uses less digits than its factorization.

230512543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30824.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 230512543 is about 15182.6395267753. The cubic root of 230512543 is about 613.1473476787.

Adding to 230512543 its reverse (345215032), we get a palindrome (575727575).

The spelling of 230512543 in words is "two hundred thirty million, five hundred twelve thousand, five hundred forty-three".