243000609 has 8 divisors (see below), whose sum is σ = 324885120. Its totient is φ = 161558256.

The previous prime is 243000577. The next prime is 243000623. The reversal of 243000609 is 906000342.

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

It is not a de Polignac number, because 243000609 - 2⁵ = 243000577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243000629) 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, 109254 + ... + 111455.

It is an arithmetic number, because the mean of its divisors is an integer number (40610640).

Almost surely, 2^243000609 is an apocalyptic number.

It is an amenable number.

243000609 is a deficient number, since it is larger than the sum of its proper divisors (81884511).

243000609 is a wasteful number, since it uses less digits than its factorization.

243000609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221079.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 243000609 is about 15588.4768017918. The cubic root of 243000609 is about 624.0256682201.

The spelling of 243000609 in words is "two hundred forty-three million, six hundred nine", and thus it is an aban number.