208011 has 4 divisors (see below), whose sum is σ = 277352. Its totient is φ = 138672.

The previous prime is 208009. The next prime is 208037. The reversal of 208011 is 110802.

It is a happy number.

208011 is digitally balanced in base 2 and base 7, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 208011 - 2¹ = 208009 is a prime.

It is a super-2 number, since 2×208011² = 86537152242, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

208011 is strictly pandigital in base 7.

208011 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 208011.

It is not an unprimeable number, because it can be changed into a prime (208001) 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, 34666 + ... + 34671.

It is an arithmetic number, because the mean of its divisors is an integer number (69338).

2²⁰⁸⁰¹¹ is an apocalyptic number.

208011 is a deficient number, since it is larger than the sum of its proper divisors (69341).

208011 is an equidigital number, since it uses as much as digits as its factorization.

208011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69340.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 208011 is about 456.0822294280. The cubic root of 208011 is about 59.2509658195.

Adding to 208011 its reverse (110802), we get a palindrome (318813).

It can be divided in two parts, 20801 and 1, that added together give a palindrome (20802).

The spelling of 208011 in words is "two hundred eight thousand, eleven".