205108 has 12 divisors (see below), whose sum is σ = 366912. Its totient is φ = 100280.

The previous prime is 205103. The next prime is 205111. The reversal of 205108 is 801502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 205091 and 205100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358 + ... + 733.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2²⁰⁵¹⁰⁸ is an apocalyptic number.

It is an amenable number.

205108 is a deficient number, since it is larger than the sum of its proper divisors (161804).

205108 is a wasteful number, since it uses less digits than its factorization.

205108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 205108 is about 452.8885072510. Note that the first 3 decimals coincide. The cubic root of 205108 is about 58.9740381803.

It can be divided in two parts, 205 and 108, that added together give a palindrome (313).

The spelling of 205108 in words is "two hundred five thousand, one hundred eight".