243140012 has 12 divisors (see below), whose sum is σ = 426157200. Its totient is φ = 121380816.

The previous prime is 243140011. The next prime is 243140041. The reversal of 243140012 is 210041342.

It is not an unprimeable number, because it can be changed into a prime (243140011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44387 + ... + 49562.

It is an arithmetic number, because the mean of its divisors is an integer number (35513100).

Almost surely, 2^243140012 is an apocalyptic number.

It is an amenable number.

243140012 is a deficient number, since it is larger than the sum of its proper divisors (183017188).

243140012 is a wasteful number, since it uses less digits than its factorization.

243140012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94600 (or 94598 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 243140012 is about 15592.9475084090. The cubic root of 243140012 is about 624.1449743967.

Adding to 243140012 its reverse (210041342), we get a palindrome (453181354).

The spelling of 243140012 in words is "two hundred forty-three million, one hundred forty thousand, twelve".