208156 has 12 divisors (see below), whose sum is σ = 392392. Its totient is φ = 96048.

The previous prime is 208147. The next prime is 208189. The reversal of 208156 is 651802.

It is a happy number.

208156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950 + ... + 2053.

2²⁰⁸¹⁵⁶ is an apocalyptic number.

208156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

208156 is a deficient number, since it is larger than the sum of its proper divisors (184236).

208156 is a wasteful number, since it uses less digits than its factorization.

208156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 208156 is about 456.2411642980. The cubic root of 208156 is about 59.2647301469.

Adding to 208156 its reverse (651802), we get a palindrome (859958).

The spelling of 208156 in words is "two hundred eight thousand, one hundred fifty-six".