195880805 has 8 divisors (see below), whose sum is σ = 235377792. Its totient is φ = 156490768.

The previous prime is 195880793. The next prime is 195880831. The reversal of 195880805 is 508088591.

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

It is a cyclic number.

It is not a de Polignac number, because 195880805 - 2⁸ = 195880549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 22649 + ... + 30078.

It is an arithmetic number, because the mean of its divisors is an integer number (29422224).

Almost surely, 2^195880805 is an apocalyptic number.

It is an amenable number.

195880805 is a deficient number, since it is larger than the sum of its proper divisors (39496987).

195880805 is an equidigital number, since it uses as much as digits as its factorization.

195880805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53475.

The product of its (nonzero) digits is 115200, while the sum is 44.

The square root of 195880805 is about 13995.7423883122. The cubic root of 195880805 is about 580.7607980814.

The spelling of 195880805 in words is "one hundred ninety-five million, eight hundred eighty thousand, eight hundred five".