204117 has 8 divisors (see below), whose sum is σ = 286560. Its totient is φ = 128880.

The previous prime is 204107. The next prime is 204133. The reversal of 204117 is 711402.

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

It is not a de Polignac number, because 204117 - 2⁴ = 204101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204096 and 204105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204107) 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, 1734 + ... + 1847.

It is an arithmetic number, because the mean of its divisors is an integer number (35820).

2²⁰⁴¹¹⁷ is an apocalyptic number.

It is an amenable number.

204117 is a deficient number, since it is larger than the sum of its proper divisors (82443).

204117 is a wasteful number, since it uses less digits than its factorization.

204117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 204117 is about 451.7930942367. The cubic root of 204117 is about 58.8789051282.

Adding to 204117 its reverse (711402), we get a palindrome (915519).

The spelling of 204117 in words is "two hundred four thousand, one hundred seventeen", and thus it is an iban number.