235230143 has 4 divisors (see below), whose sum is σ = 235277808. Its totient is φ = 235182480.

The previous prime is 235230133. The next prime is 235230157. The reversal of 235230143 is 341032532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235230143 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 (235230113) 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, 15446 + ... + 26627.

It is an arithmetic number, because the mean of its divisors is an integer number (58819452).

Almost surely, 2^235230143 is an apocalyptic number.

235230143 is a deficient number, since it is larger than the sum of its proper divisors (47665).

235230143 is an equidigital number, since it uses as much as digits as its factorization.

235230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47664.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 235230143 is about 15337.2143168178. The cubic root of 235230143 is about 617.3019623157.

Adding to 235230143 its reverse (341032532), we get a palindrome (576262675).

The spelling of 235230143 in words is "two hundred thirty-five million, two hundred thirty thousand, one hundred forty-three".