204495 has 8 divisors (see below), whose sum is σ = 327216. Its totient is φ = 109056.

The previous prime is 204487. The next prime is 204509. The reversal of 204495 is 594402.

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

It is not a de Polignac number, because 204495 - 2³ = 204487 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6802 + ... + 6831.

It is an arithmetic number, because the mean of its divisors is an integer number (40902).

2²⁰⁴⁴⁹⁵ is an apocalyptic number.

204495 is a deficient number, since it is larger than the sum of its proper divisors (122721).

204495 is a wasteful number, since it uses less digits than its factorization.

204495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 204495 is about 452.2112338277. The cubic root of 204495 is about 58.9152282527.

Adding to 204495 its reverse (594402), we get a palindrome (798897).

The spelling of 204495 in words is "two hundred four thousand, four hundred ninety-five".