195003985 has 16 divisors (see below), whose sum is σ = 258878592. Its totient is φ = 139820800.

The previous prime is 195003983. The next prime is 195004003. The reversal of 195003985 is 589300591.

It is not a de Polignac number, because 195003985 - 2¹ = 195003983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195003983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21064 + ... + 28873.

It is an arithmetic number, because the mean of its divisors is an integer number (16179912).

Almost surely, 2^195003985 is an apocalyptic number.

It is an amenable number.

195003985 is a deficient number, since it is larger than the sum of its proper divisors (63874607).

195003985 is a wasteful number, since it uses less digits than its factorization.

195003985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50024.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 195003985 is about 13964.3827289286. The cubic root of 195003985 is about 579.8929499220.

The spelling of 195003985 in words is "one hundred ninety-five million, three thousand, nine hundred eighty-five".