195917085 has 48 divisors (see below), whose sum is σ = 417965184. Its totient is φ = 82670976.

The previous prime is 195917063. The next prime is 195917093. The reversal of 195917085 is 580719591.

It is not a de Polignac number, because 195917085 - 2⁵ = 195917053 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 195917085.

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 47 ways as a sum of consecutive naturals, for example, 19827 + ... + 28016.

It is an arithmetic number, because the mean of its divisors is an integer number (8707608).

Almost surely, 2^195917085 is an apocalyptic number.

195917085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

195917085 is an abundant number, since it is smaller than the sum of its proper divisors (222048099).

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

195917085 is a wasteful number, since it uses less digits than its factorization.

195917085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47874 (or 47871 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 195917085 is about 13997.0384367551. The cubic root of 195917085 is about 580.7966510092.

It can be divided in two parts, 1959 and 17085, that added together give a square (19044 = 138²).

The spelling of 195917085 in words is "one hundred ninety-five million, nine hundred seventeen thousand, eighty-five".