243140211 has 12 divisors (see below), whose sum is σ = 364210392. Its totient is φ = 162093312.

The previous prime is 243140167. The next prime is 243140221. The reversal of 243140211 is 112041342.

It is not a de Polignac number, because 243140211 - 2¹⁴ = 243123827 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (243140221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500046 + ... + 500531.

It is an arithmetic number, because the mean of its divisors is an integer number (30350866).

Almost surely, 2^243140211 is an apocalyptic number.

243140211 is a deficient number, since it is larger than the sum of its proper divisors (121070181).

243140211 is an equidigital number, since it uses as much as digits as its factorization.

243140211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000592 (or 1000580 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 243140211 is about 15592.9538894977. The cubic root of 243140211 is about 624.1451446756.

Adding to 243140211 its reverse (112041342), we get a palindrome (355181553).

The spelling of 243140211 in words is "two hundred forty-three million, one hundred forty thousand, two hundred eleven".