243455285 has 8 divisors (see below), whose sum is σ = 293677056. Its totient is φ = 193743760.

The previous prime is 243455273. The next prime is 243455291. The reversal of 243455285 is 582554342.

It is a happy number.

243455285 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 243455285 - 2⁶ = 243455221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126509 + ... + 128418.

It is an arithmetic number, because the mean of its divisors is an integer number (36709632).

Almost surely, 2^243455285 is an apocalyptic number.

It is an amenable number.

243455285 is a deficient number, since it is larger than the sum of its proper divisors (50221771).

243455285 is a wasteful number, since it uses less digits than its factorization.

243455285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255123.

The product of its digits is 192000, while the sum is 38.

The square root of 243455285 is about 15603.0537075279. The cubic root of 243455285 is about 624.4146284487.

The spelling of 243455285 in words is "two hundred forty-three million, four hundred fifty-five thousand, two hundred eighty-five".