204075965 has 8 divisors (see below), whose sum is σ = 245728728. Its totient is φ = 162702400.

The previous prime is 204075959. The next prime is 204075967. The reversal of 204075965 is 569570402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116877721 + 87198244 = 10811^2 + 9338^2 .

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

It is not a de Polignac number, because 204075965 - 2⁸ = 204075709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204075967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68186 + ... + 71115.

It is an arithmetic number, because the mean of its divisors is an integer number (30716091).

Almost surely, 2^204075965 is an apocalyptic number.

It is an amenable number.

204075965 is a deficient number, since it is larger than the sum of its proper divisors (41652763).

204075965 is a wasteful number, since it uses less digits than its factorization.

204075965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139599.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 204075965 is about 14285.5159164799. The cubic root of 204075965 is about 588.7495925758.

The spelling of 204075965 in words is "two hundred four million, seventy-five thousand, nine hundred sixty-five".