243023243 has 16 divisors (see below), whose sum is σ = 259338240. Its totient is φ = 227088000.

The previous prime is 243023213. The next prime is 243023251. The reversal of 243023243 is 342320342.

It is not a de Polignac number, because 243023243 - 2²² = 238828939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243023213) 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 15 ways as a sum of consecutive naturals, for example, 605843 + ... + 606243.

It is an arithmetic number, because the mean of its divisors is an integer number (16208640).

Almost surely, 2^243023243 is an apocalyptic number.

243023243 is a deficient number, since it is larger than the sum of its proper divisors (16314997).

243023243 is a wasteful number, since it uses less digits than its factorization.

243023243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 243023243 is about 15589.2027698661. The cubic root of 243023243 is about 624.0450423258.

Adding to 243023243 its reverse (342320342), we get a palindrome (585343585).

The spelling of 243023243 in words is "two hundred forty-three million, twenty-three thousand, two hundred forty-three".