243355316 has 6 divisors (see below), whose sum is σ = 425871810. Its totient is φ = 121677656.

The previous prime is 243355283. The next prime is 243355337. The reversal of 243355316 is 613553342.

It can be written as a sum of positive squares in only one way, i.e., 207475216 + 35880100 = 14404^2 + 5990^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30419411 + ... + 30419418.

It is an arithmetic number, because the mean of its divisors is an integer number (70978635).

Almost surely, 2^243355316 is an apocalyptic number.

It is an amenable number.

243355316 is a deficient number, since it is larger than the sum of its proper divisors (182516494).

243355316 is a wasteful number, since it uses less digits than its factorization.

243355316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60838833 (or 60838831 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 243355316 is about 15599.8498710725. The cubic root of 243355316 is about 624.3291498471.

The spelling of 243355316 in words is "two hundred forty-three million, three hundred fifty-five thousand, three hundred sixteen".