243326065 has 8 divisors (see below), whose sum is σ = 307359360. Its totient is φ = 184415472.

The previous prime is 243326063. The next prime is 243326087. The reversal of 243326065 is 560623342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243326065 - 2¹ = 243326063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243326063) 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 7 ways as a sum of consecutive naturals, for example, 1280569 + ... + 1280758.

It is an arithmetic number, because the mean of its divisors is an integer number (38419920).

Almost surely, 2^243326065 is an apocalyptic number.

It is an amenable number.

243326065 is a deficient number, since it is larger than the sum of its proper divisors (64033295).

243326065 is a wasteful number, since it uses less digits than its factorization.

243326065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561351.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 243326065 is about 15598.9123018241. The cubic root of 243326065 is about 624.3041343211.

The spelling of 243326065 in words is "two hundred forty-three million, three hundred twenty-six thousand, sixty-five".