204145170 has 16 divisors (see below), whose sum is σ = 489948480. Its totient is φ = 54438704.

The previous prime is 204145159. The next prime is 204145187. The reversal of 204145170 is 71541402.

204145170 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 204145170.

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, 3402390 + ... + 3402449.

It is an arithmetic number, because the mean of its divisors is an integer number (30621780).

Almost surely, 2^204145170 is an apocalyptic number.

204145170 is an abundant number, since it is smaller than the sum of its proper divisors (285803310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204145170 is a wasteful number, since it uses less digits than its factorization.

204145170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804849.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 204145170 is about 14287.9379197979. The cubic root of 204145170 is about 588.8161361147.

Adding to 204145170 its reverse (71541402), we get a palindrome (275686572).

The spelling of 204145170 in words is "two hundred four million, one hundred forty-five thousand, one hundred seventy".