206542012 has 12 divisors (see below), whose sum is σ = 363875400. Its totient is φ = 102577616.

The previous prime is 206541997. The next prime is 206542013. The reversal of 206542012 is 210245602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206542013) 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, 172678 + ... + 173869.

It is an arithmetic number, because the mean of its divisors is an integer number (30322950).

Almost surely, 2^206542012 is an apocalyptic number.

It is an amenable number.

206542012 is a deficient number, since it is larger than the sum of its proper divisors (157333388).

206542012 is a wasteful number, since it uses less digits than its factorization.

206542012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346700 (or 346698 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 206542012 is about 14371.5695732930. The cubic root of 206542012 is about 591.1115805749. Note that the first 3 decimals are identical.

Adding to 206542012 its reverse (210245602), we get a palindrome (416787614).

The spelling of 206542012 in words is "two hundred six million, five hundred forty-two thousand, twelve".