243433045 has 4 divisors (see below), whose sum is σ = 292119660. Its totient is φ = 194746432.

The previous prime is 243433039. The next prime is 243433087. The reversal of 243433045 is 540334342.

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

It can be written as a sum of positive squares in 2 ways, for example, as 142611364 + 100821681 = 11942^2 + 10041^2 .

It is a cyclic number.

It is not a de Polignac number, because 243433045 - 2³ = 243433037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24343300 + ... + 24343309.

It is an arithmetic number, because the mean of its divisors is an integer number (73029915).

Almost surely, 2^243433045 is an apocalyptic number.

It is an amenable number.

243433045 is a deficient number, since it is larger than the sum of its proper divisors (48686615).

243433045 is an equidigital number, since it uses as much as digits as its factorization.

243433045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48686614.

The product of its (nonzero) digits is 17280, while the sum is 28.

The square root of 243433045 is about 15602.3410102459. The cubic root of 243433045 is about 624.3956141368.

Adding to 243433045 its reverse (540334342), we get a palindrome (783767387).

The spelling of 243433045 in words is "two hundred forty-three million, four hundred thirty-three thousand, forty-five".