195828681 has 8 divisors (see below), whose sum is σ = 261701440. Its totient is φ = 130254192.

The previous prime is 195828629. The next prime is 195828691. The reversal of 195828681 is 186828591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195828681 - 2⁶ = 195828617 is a prime.

It is a super-2 number, since 2×195828681² = 76697744604399522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195828681.

It is not an unprimeable number, because it can be changed into a prime (195828691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73030 + ... + 75663.

It is an arithmetic number, because the mean of its divisors is an integer number (32712680).

Almost surely, 2^195828681 is an apocalyptic number.

It is an amenable number.

195828681 is a deficient number, since it is larger than the sum of its proper divisors (65872759).

195828681 is a wasteful number, since it uses less digits than its factorization.

195828681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149135.

The product of its digits is 276480, while the sum is 48.

The square root of 195828681 is about 13993.8801266839. The cubic root of 195828681 is about 580.7092799123.

The spelling of 195828681 in words is "one hundred ninety-five million, eight hundred twenty-eight thousand, six hundred eighty-one".