230502143 has 4 divisors (see below), whose sum is σ = 237937728. Its totient is φ = 223066560.

The previous prime is 230502137. The next prime is 230502157. The reversal of 230502143 is 341205032.

It is a happy number.

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 230502143 - 2⁴ = 230502127 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 (230502163) 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, 3717746 + ... + 3717807.

It is an arithmetic number, because the mean of its divisors is an integer number (59484432).

Almost surely, 2^230502143 is an apocalyptic number.

230502143 is a deficient number, since it is larger than the sum of its proper divisors (7435585).

230502143 is an equidigital number, since it uses as much as digits as its factorization.

230502143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7435584.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 230502143 is about 15182.2970264713. The cubic root of 230502143 is about 613.1381264476.

Adding to 230502143 its reverse (341205032), we get a palindrome (571707175).

The spelling of 230502143 in words is "two hundred thirty million, five hundred two thousand, one hundred forty-three".