195196805 has 8 divisors (see below), whose sum is σ = 248014872. Its totient is φ = 146971648.

The previous prime is 195196769. The next prime is 195196819. The reversal of 195196805 is 508691591.

It can be written as a sum of positive squares in 4 ways, for example, as 74943649 + 120253156 = 8657^2 + 10966^2 .

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 195196805 - 2⁸ = 195196549 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1148132 + ... + 1148301.

It is an arithmetic number, because the mean of its divisors is an integer number (31001859).

Almost surely, 2^195196805 is an apocalyptic number.

It is an amenable number.

195196805 is a deficient number, since it is larger than the sum of its proper divisors (52818067).

195196805 is a wasteful number, since it uses less digits than its factorization.

195196805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296455.

The product of its (nonzero) digits is 97200, while the sum is 44.

The square root of 195196805 is about 13971.2850160606. The cubic root of 195196805 is about 580.0840197346.

The spelling of 195196805 in words is "one hundred ninety-five million, one hundred ninety-six thousand, eight hundred five".