205124 has 12 divisors (see below), whose sum is σ = 378000. Its totient is φ = 97128.

The previous prime is 205111. The next prime is 205129. The reversal of 205124 is 421502.

It is a junction number, because it is equal to n+sod(n) for n = 205099 and 205108.

It is not an unprimeable number, because it can be changed into a prime (205129) 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, 1274 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (31500).

2²⁰⁵¹²⁴ is an apocalyptic number.

It is an amenable number.

205124 is a deficient number, since it is larger than the sum of its proper divisors (172876).

205124 is a wasteful number, since it uses less digits than its factorization.

205124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 205124 is about 452.9061712982. The cubic root of 205124 is about 58.9755716164.

Adding to 205124 its reverse (421502), we get a palindrome (626626).

The spelling of 205124 in words is "two hundred five thousand, one hundred twenty-four".