230140243 has 4 divisors (see below), whose sum is σ = 233575240. Its totient is φ = 226705248.

The previous prime is 230140223. The next prime is 230140279. The reversal of 230140243 is 342041032.

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 230140243 - 2²⁵ = 196585811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230140243.

It is not an unprimeable number, because it can be changed into a prime (230140223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717398 + ... + 1717531.

It is an arithmetic number, because the mean of its divisors is an integer number (58393810).

Almost surely, 2^230140243 is an apocalyptic number.

230140243 is a deficient number, since it is larger than the sum of its proper divisors (3434997).

230140243 is an equidigital number, since it uses as much as digits as its factorization.

230140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434996.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 230140243 is about 15170.3738582805. The cubic root of 230140243 is about 612.8170724289.

Adding to 230140243 its reverse (342041032), we get a palindrome (572181275).

The spelling of 230140243 in words is "two hundred thirty million, one hundred forty thousand, two hundred forty-three".