243225512 has 16 divisors (see below), whose sum is σ = 458438400. Its totient is φ = 120975280.

The previous prime is 243225509. The next prime is 243225547. The reversal of 243225512 is 215522342.

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, 78062 + ... + 81117.

It is an arithmetic number, because the mean of its divisors is an integer number (28652400).

Almost surely, 2^243225512 is an apocalyptic number.

It is an amenable number.

243225512 is a deficient number, since it is larger than the sum of its proper divisors (215212888).

243225512 is a wasteful number, since it uses less digits than its factorization.

243225512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159376 (or 159372 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 243225512 is about 15595.6888914854. The cubic root of 243225512 is about 624.2181258577.

Adding to 243225512 its reverse (215522342), we get a palindrome (458747854).

The spelling of 243225512 in words is "two hundred forty-three million, two hundred twenty-five thousand, five hundred twelve".