243285117 has 8 divisors (see below), whose sum is σ = 334844160. Its totient is φ = 156958080.

The previous prime is 243285109. The next prime is 243285157. The reversal of 243285117 is 711582342.

243285117 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 not a de Polignac number, because 243285117 - 2³ = 243285109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243285157) 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, 1307892 + ... + 1308077.

It is an arithmetic number, because the mean of its divisors is an integer number (41855520).

Almost surely, 2^243285117 is an apocalyptic number.

It is an amenable number.

243285117 is a deficient number, since it is larger than the sum of its proper divisors (91559043).

243285117 is a wasteful number, since it uses less digits than its factorization.

243285117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616003.

The product of its digits is 13440, while the sum is 33.

The square root of 243285117 is about 15597.5997191876. The cubic root of 243285117 is about 624.2691121245.

The spelling of 243285117 in words is "two hundred forty-three million, two hundred eighty-five thousand, one hundred seventeen".