204498145 has 8 divisors (see below), whose sum is σ = 246470760. Its totient is φ = 162883200.

The previous prime is 204498113. The next prime is 204498191. The reversal of 204498145 is 541894402.

It can be written as a sum of positive squares in 4 ways, for example, as 22572001 + 181926144 = 4751^2 + 13488^2 .

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

It is not a de Polignac number, because 204498145 - 2⁵ = 204498113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88156 + ... + 90445.

It is an arithmetic number, because the mean of its divisors is an integer number (30808845).

Almost surely, 2^204498145 is an apocalyptic number.

It is an amenable number.

204498145 is a deficient number, since it is larger than the sum of its proper divisors (41972615).

204498145 is a wasteful number, since it uses less digits than its factorization.

204498145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178835.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 204498145 is about 14300.2847873740. The cubic root of 204498145 is about 589.1553027712.

The spelling of 204498145 in words is "two hundred four million, four hundred ninety-eight thousand, one hundred forty-five".