243133066 has 16 divisors (see below), whose sum is σ = 399880800. Its totient is φ = 109952080.

The previous prime is 243133057. The next prime is 243133087. The reversal of 243133066 is 660331342.

It is a super-2 number, since 2×243133066² = 118227375565120712, which contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 23716 + ... + 32383.

It is an arithmetic number, because the mean of its divisors is an integer number (24992550).

Almost surely, 2^243133066 is an apocalyptic number.

243133066 is a deficient number, since it is larger than the sum of its proper divisors (156747734).

243133066 is a wasteful number, since it uses less digits than its factorization.

243133066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56309.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 243133066 is about 15592.7247779213. The cubic root of 243133066 is about 624.1390308360.

The spelling of 243133066 in words is "two hundred forty-three million, one hundred thirty-three thousand, sixty-six".