243008047 has 8 divisors (see below), whose sum is σ = 258186096. Its totient is φ = 227928192.

The previous prime is 243008009. The next prime is 243008053. The reversal of 243008047 is 740800342.

243008047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243008047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243008947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19413 + ... + 29374.

It is an arithmetic number, because the mean of its divisors is an integer number (32273262).

Almost surely, 2^243008047 is an apocalyptic number.

243008047 is a deficient number, since it is larger than the sum of its proper divisors (15178049).

243008047 is a wasteful number, since it uses less digits than its factorization.

243008047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49097.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 243008047 is about 15588.7153736285. The cubic root of 243008047 is about 624.0320350842.

Adding to 243008047 its reverse (740800342), we get a palindrome (983808389).

The spelling of 243008047 in words is "two hundred forty-three million, eight thousand, forty-seven".