142230243 has 4 divisors (see below), whose sum is σ = 189640328. Its totient is φ = 94820160.

The previous prime is 142230203. The next prime is 142230259. The reversal of 142230243 is 342032241.

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

It is not a de Polignac number, because 142230243 - 2²⁶ = 75121379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142230203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23705038 + ... + 23705043.

It is an arithmetic number, because the mean of its divisors is an integer number (47410082).

Almost surely, 2^142230243 is an apocalyptic number.

142230243 is a deficient number, since it is larger than the sum of its proper divisors (47410085).

142230243 is an equidigital number, since it uses as much as digits as its factorization.

142230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47410084.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142230243 is about 11926.0321565892. The cubic root of 142230243 is about 521.9921645599.

Adding to 142230243 its reverse (342032241), we get a palindrome (484262484).

The spelling of 142230243 in words is "one hundred forty-two million, two hundred thirty thousand, two hundred forty-three".