195328885 has 4 divisors (see below), whose sum is σ = 234394668. Its totient is φ = 156263104.

The previous prime is 195328877. The next prime is 195328897. The reversal of 195328885 is 588823591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 588823591 = 41 ⋅14361551.

It can be written as a sum of positive squares in 2 ways, for example, as 27185796 + 168143089 = 5214^2 + 12967^2 .

It is a cyclic number.

It is not a de Polignac number, because 195328885 - 2³ = 195328877 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19532884 + ... + 19532893.

It is an arithmetic number, because the mean of its divisors is an integer number (58598667).

Almost surely, 2^195328885 is an apocalyptic number.

It is an amenable number.

195328885 is a deficient number, since it is larger than the sum of its proper divisors (39065783).

195328885 is an equidigital number, since it uses as much as digits as its factorization.

195328885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39065782.

The product of its digits is 691200, while the sum is 49.

The square root of 195328885 is about 13976.0110546608. The cubic root of 195328885 is about 580.2148282670.

The spelling of 195328885 in words is "one hundred ninety-five million, three hundred twenty-eight thousand, eight hundred eighty-five".