195632865 has 24 divisors (see below), whose sum is σ = 339661608. Its totient is φ = 104163840.

The previous prime is 195632851. The next prime is 195632867. The reversal of 195632865 is 568236591.

195632865 is a `hidden beast` number, since 1 + 9 + 5 + 632 + 8 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 105021504 + 90611361 = 10248^2 + 9519^2 .

It is not a de Polignac number, because 195632865 - 2⁸ = 195632609 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195632865.

It is not an unprimeable number, because it can be changed into a prime (195632867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26457 + ... + 33033.

It is an arithmetic number, because the mean of its divisors is an integer number (14152567).

Almost surely, 2^195632865 is an apocalyptic number.

195632865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

195632865 is a deficient number, since it is larger than the sum of its proper divisors (144028743).

195632865 is a wasteful number, since it uses less digits than its factorization.

195632865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7249 (or 7246 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 195632865 is about 13986.8818898281. The cubic root of 195632865 is about 580.5156581363.

The spelling of 195632865 in words is "one hundred ninety-five million, six hundred thirty-two thousand, eight hundred sixty-five".