243290875 has 16 divisors (see below), whose sum is σ = 308614176. Its totient is φ = 191436000.

The previous prime is 243290867. The next prime is 243290881. The reversal of 243290875 is 578092342.

243290875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243290875 - 2³ = 243290867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8329 + ... + 23578.

It is an arithmetic number, because the mean of its divisors is an integer number (19288386).

Almost surely, 2^243290875 is an apocalyptic number.

243290875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243290875 is a deficient number, since it is larger than the sum of its proper divisors (65323301).

243290875 is an equidigital number, since it uses as much as digits as its factorization.

243290875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31983 (or 31973 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 243290875 is about 15597.7842977777. The cubic root of 243290875 is about 624.2740370911.

The spelling of 243290875 in words is "two hundred forty-three million, two hundred ninety thousand, eight hundred seventy-five".