243140204 has 12 divisors (see below), whose sum is σ = 425623800. Its totient is φ = 121533408.

The previous prime is 243140167. The next prime is 243140221. The reversal of 243140204 is 402041342.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10352 + ... + 24360.

It is an arithmetic number, because the mean of its divisors is an integer number (35468650).

Almost surely, 2^243140204 is an apocalyptic number.

It is an amenable number.

243140204 is a deficient number, since it is larger than the sum of its proper divisors (182483596).

243140204 is a wasteful number, since it uses less digits than its factorization.

243140204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18352 (or 18350 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 243140204 is about 15592.9536650373. The cubic root of 243140204 is about 624.1451386858.

Adding to 243140204 its reverse (402041342), we get a palindrome (645181546).

The spelling of 243140204 in words is "two hundred forty-three million, one hundred forty thousand, two hundred four".