243223012 has 12 divisors (see below), whose sum is σ = 450678060. Its totient is φ = 114457856.

The previous prime is 243222983. The next prime is 243223021. The reversal of 243223012 is 210322342.

It can be written as a sum of positive squares in 2 ways, for example, as 186431716 + 56791296 = 13654^2 + 7536^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 1788337 + ... + 1788472.

It is an arithmetic number, because the mean of its divisors is an integer number (37556505).

Almost surely, 2^243223012 is an apocalyptic number.

It is an amenable number.

243223012 is a deficient number, since it is larger than the sum of its proper divisors (207455048).

243223012 is a wasteful number, since it uses less digits than its factorization.

243223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576830 (or 3576828 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243223012 is about 15595.6087409245. The cubic root of 243223012 is about 624.2159871694.

Adding to 243223012 its reverse (210322342), we get a palindrome (453545354).

The spelling of 243223012 in words is "two hundred forty-three million, two hundred twenty-three thousand, twelve".