243097312 has 12 divisors (see below), whose sum is σ = 478597896. Its totient is φ = 121548640.

The previous prime is 243097303. The next prime is 243097313. The reversal of 243097312 is 213790342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243097313) by changing a digit.

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, 3798364 + ... + 3798427.

It is an arithmetic number, because the mean of its divisors is an integer number (39883158).

Almost surely, 2^243097312 is an apocalyptic number.

It is an amenable number.

243097312 is a deficient number, since it is larger than the sum of its proper divisors (235500584).

243097312 is an equidigital number, since it uses as much as digits as its factorization.

243097312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596801 (or 7596793 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 243097312 is about 15591.5782395497. The cubic root of 243097312 is about 624.1084350238.

The spelling of 243097312 in words is "two hundred forty-three million, ninety-seven thousand, three hundred twelve".