204118 has 4 divisors (see below), whose sum is σ = 306180. Its totient is φ = 102058.

The previous prime is 204107. The next prime is 204133. The reversal of 204118 is 811402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 811402 = 2 ⋅405701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51028 + ... + 51031.

It is an arithmetic number, because the mean of its divisors is an integer number (76545).

2²⁰⁴¹¹⁸ is an apocalyptic number.

204118 is a deficient number, since it is larger than the sum of its proper divisors (102062).

204118 is a wasteful number, since it uses less digits than its factorization.

204118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102061.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 204118 is about 451.7942009367. The cubic root of 204118 is about 58.8790012802.

The spelling of 204118 in words is "two hundred four thousand, one hundred eighteen".