195631916 has 6 divisors (see below), whose sum is σ = 342355860. Its totient is φ = 97815956.

The previous prime is 195631871. The next prime is 195631921. The reversal of 195631916 is 619136591.

195631916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24453986 + ... + 24453993.

It is an arithmetic number, because the mean of its divisors is an integer number (57059310).

Almost surely, 2^195631916 is an apocalyptic number.

It is an amenable number.

195631916 is a deficient number, since it is larger than the sum of its proper divisors (146723944).

195631916 is a wasteful number, since it uses less digits than its factorization.

195631916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48907983 (or 48907981 counting only the distinct ones).

The product of its digits is 43740, while the sum is 41.

The square root of 195631916 is about 13986.8479651421. The cubic root of 195631916 is about 580.5147194558.

The spelling of 195631916 in words is "one hundred ninety-five million, six hundred thirty-one thousand, nine hundred sixteen".