206015812 has 6 divisors (see below), whose sum is σ = 360527678. Its totient is φ = 103007904.

The previous prime is 206015791. The next prime is 206015813. The reversal of 206015812 is 218510602.

206015812 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 199543876 + 6471936 = 14126^2 + 2544^2 .

It is not an unprimeable number, because it can be changed into a prime (206015813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25751973 + ... + 25751980.

Almost surely, 2^206015812 is an apocalyptic number.

It is an amenable number.

206015812 is a deficient number, since it is larger than the sum of its proper divisors (154511866).

206015812 is a wasteful number, since it uses less digits than its factorization.

206015812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51503957 (or 51503955 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 206015812 is about 14353.2509209586. The cubic root of 206015812 is about 590.6091687740.

The spelling of 206015812 in words is "two hundred six million, fifteen thousand, eight hundred twelve".