195765805 has 16 divisors (see below), whose sum is σ = 243687600. Its totient is φ = 150796800.

The previous prime is 195765781. The next prime is 195765827. The reversal of 195765805 is 508567591.

It can be written as a sum of positive squares in 8 ways, for example, as 157609 + 195608196 = 397^2 + 13986^2 .

It is not a de Polignac number, because 195765805 - 2¹³ = 195757613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57655 + ... + 60955.

It is an arithmetic number, because the mean of its divisors is an integer number (15230475).

Almost surely, 2^195765805 is an apocalyptic number.

It is an amenable number.

195765805 is a deficient number, since it is larger than the sum of its proper divisors (47921795).

195765805 is a wasteful number, since it uses less digits than its factorization.

195765805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744.

The product of its (nonzero) digits is 378000, while the sum is 46.

The square root of 195765805 is about 13991.6333928530. The cubic root of 195765805 is about 580.6471225460.

The spelling of 195765805 in words is "one hundred ninety-five million, seven hundred sixty-five thousand, eight hundred five".