243282861 has 6 divisors (see below), whose sum is σ = 351408590. Its totient is φ = 162188568.

The previous prime is 243282847. The next prime is 243282883. The reversal of 243282861 is 168282342.

It can be written as a sum of positive squares in only one way, i.e., 161036100 + 82246761 = 12690^2 + 9069^2 .

It is not a de Polignac number, because 243282861 - 2¹⁰ = 243281837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243282811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13515706 + ... + 13515723.

Almost surely, 2^243282861 is an apocalyptic number.

It is an amenable number.

243282861 is a deficient number, since it is larger than the sum of its proper divisors (108125729).

243282861 is a wasteful number, since it uses less digits than its factorization.

243282861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27031435 (or 27031432 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 243282861 is about 15597.5274002003. The cubic root of 243282861 is about 624.2671824881.

The spelling of 243282861 in words is "two hundred forty-three million, two hundred eighty-two thousand, eight hundred sixty-one".