195781852 has 54 divisors (see below), whose sum is σ = 420788592. Its totient is φ = 79461648.

The previous prime is 195781823. The next prime is 195781867. The reversal of 195781852 is 258187591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 69373 + ... + 72139.

Almost surely, 2^195781852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195781852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210394296).

195781852 is an abundant number, since it is smaller than the sum of its proper divisors (225006740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195781852 is a wasteful number, since it uses less digits than its factorization.

195781852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823 (or 2795 counting only the distinct ones).

The product of its digits is 201600, while the sum is 46.

The square root of 195781852 is about 13992.2068309470. The cubic root of 195781852 is about 580.6629874035.

The spelling of 195781852 in words is "one hundred ninety-five million, seven hundred eighty-one thousand, eight hundred fifty-two".