206424163 has 8 divisors (see below), whose sum is σ = 225832176. Its totient is φ = 187123200.

The previous prime is 206424161. The next prime is 206424173. The reversal of 206424163 is 361424602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206424163 - 2¹ = 206424161 is a prime.

It is a super-2 number, since 2×206424163² = 85221870140501138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206424161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22698 + ... + 30463.

It is an arithmetic number, because the mean of its divisors is an integer number (28229022).

Almost surely, 2^206424163 is an apocalyptic number.

206424163 is a deficient number, since it is larger than the sum of its proper divisors (19408013).

206424163 is a wasteful number, since it uses less digits than its factorization.

206424163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53525.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 206424163 is about 14367.4689141825. The cubic root of 206424163 is about 590.9991334567. Note that the first 3 decimals are identical.

Adding to 206424163 its reverse (361424602), we get a palindrome (567848765).

The spelling of 206424163 in words is "two hundred six million, four hundred twenty-four thousand, one hundred sixty-three".