206323161 has 16 divisors (see below), whose sum is σ = 300785088. Its totient is φ = 124761600.

The previous prime is 206323151. The next prime is 206323163. The reversal of 206323161 is 161323602.

It is a happy number.

It is not a de Polignac number, because 206323161 - 2⁵ = 206323129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206323163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8241 + ... + 21921.

It is an arithmetic number, because the mean of its divisors is an integer number (18799068).

Almost surely, 2^206323161 is an apocalyptic number.

It is an amenable number.

206323161 is a deficient number, since it is larger than the sum of its proper divisors (94461927).

206323161 is a wasteful number, since it uses less digits than its factorization.

206323161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14152.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 206323161 is about 14363.9535295823. The cubic root of 206323161 is about 590.9027270543.

Adding to 206323161 its reverse (161323602), we get a palindrome (367646763).

The spelling of 206323161 in words is "two hundred six million, three hundred twenty-three thousand, one hundred sixty-one".