206831116 has 12 divisors (see below), whose sum is σ = 363235432. Its totient is φ = 103049568.

The previous prime is 206831113. The next prime is 206831137. The reversal of 206831116 is 611138602.

It is a super-2 number, since 2×206831116² = 85558221091610912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206831113) 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, 90225 + ... + 92488.

Almost surely, 2^206831116 is an apocalyptic number.

It is an amenable number.

206831116 is a deficient number, since it is larger than the sum of its proper divisors (156404316).

206831116 is a wasteful number, since it uses less digits than its factorization.

206831116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183000 (or 182998 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 206831116 is about 14381.6242476293. The cubic root of 206831116 is about 591.3872517695.

Adding to 206831116 its reverse (611138602), we get a palindrome (817969718).

The spelling of 206831116 in words is "two hundred six million, eight hundred thirty-one thousand, one hundred sixteen".