208031 has 4 divisors (see below), whose sum is σ = 219000. Its totient is φ = 197064.

The previous prime is 208009. The next prime is 208037. The reversal of 208031 is 130802.

208031 is nontrivially palindromic in base 14.

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

It is a cyclic number.

It is not a de Polignac number, because 208031 - 2⁶ = 207967 is a prime.

It is a super-2 number, since 2×208031² = 86553793922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 207997 and 208015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5456 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (54750).

2²⁰⁸⁰³¹ is an apocalyptic number.

208031 is a deficient number, since it is larger than the sum of its proper divisors (10969).

208031 is a wasteful number, since it uses less digits than its factorization.

208031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 208031 is about 456.1041547717. The cubic root of 208031 is about 59.2528647276.

Adding to 208031 its reverse (130802), we get a palindrome (338833).

The spelling of 208031 in words is "two hundred eight thousand, thirty-one".