243047355 has 8 divisors (see below), whose sum is σ = 388875792. Its totient is φ = 129625248.

The previous prime is 243047353. The next prime is 243047359. The reversal of 243047355 is 553740342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243047355 - 2¹ = 243047353 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (243047353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8101564 + ... + 8101593.

It is an arithmetic number, because the mean of its divisors is an integer number (48609474).

Almost surely, 2^243047355 is an apocalyptic number.

243047355 is a deficient number, since it is larger than the sum of its proper divisors (145828437).

243047355 is a wasteful number, since it uses less digits than its factorization.

243047355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16203165.

The product of its (nonzero) digits is 50400, while the sum is 33.

The square root of 243047355 is about 15589.9761064602. The cubic root of 243047355 is about 624.0656802372.

Adding to 243047355 its reverse (553740342), we get a palindrome (796787697).

The spelling of 243047355 in words is "two hundred forty-three million, forty-seven thousand, three hundred fifty-five".