208242183 has 8 divisors (see below), whose sum is σ = 281171200. Its totient is φ = 137070648.

The previous prime is 208242149. The next prime is 208242191. The reversal of 208242183 is 381242802.

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

It is not a de Polignac number, because 208242183 - 2²¹ = 206145031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 208242183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208246183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439093 + ... + 439566.

It is an arithmetic number, because the mean of its divisors is an integer number (35146400).

Almost surely, 2^208242183 is an apocalyptic number.

208242183 is a deficient number, since it is larger than the sum of its proper divisors (72929017).

208242183 is an equidigital number, since it uses as much as digits as its factorization.

208242183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878741.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 208242183 is about 14430.5988441229. The cubic root of 208242183 is about 592.7290816003.

Adding to 208242183 its reverse (381242802), we get a palindrome (589484985).

The spelling of 208242183 in words is "two hundred eight million, two hundred forty-two thousand, one hundred eighty-three".