195683138 has 16 divisors (see below), whose sum is σ = 336701184. Its totient is φ = 83553120.

The previous prime is 195683123. The next prime is 195683161. The reversal of 195683138 is 831386591.

195683138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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, 21995 + ... + 29582.

It is an arithmetic number, because the mean of its divisors is an integer number (21043824).

Almost surely, 2^195683138 is an apocalyptic number.

195683138 is a deficient number, since it is larger than the sum of its proper divisors (141018046).

195683138 is a wasteful number, since it uses less digits than its factorization.

195683138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51857.

The product of its digits is 155520, while the sum is 44.

The square root of 195683138 is about 13988.6789226145. The cubic root of 195683138 is about 580.5653801230.

The spelling of 195683138 in words is "one hundred ninety-five million, six hundred eighty-three thousand, one hundred thirty-eight".