243066266 has 4 divisors (see below), whose sum is σ = 364599402. Its totient is φ = 121533132.

The previous prime is 243066251. The next prime is 243066287. The reversal of 243066266 is 662660342.

243066266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 233325625 + 9740641 = 15275^2 + 3121^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 60766565 + ... + 60766568.

Almost surely, 2^243066266 is an apocalyptic number.

243066266 is a deficient number, since it is larger than the sum of its proper divisors (121533136).

243066266 is a wasteful number, since it uses less digits than its factorization.

243066266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121533135.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 243066266 is about 15590.5826061761. The cubic root of 243066266 is about 624.0818655604.

The spelling of 243066266 in words is "two hundred forty-three million, sixty-six thousand, two hundred sixty-six".