195902 has 12 divisors (see below), whose sum is σ = 342000. Its totient is φ = 83916.

The previous prime is 195893. The next prime is 195907. The reversal of 195902 is 209591.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195902.

It is not an unprimeable number, because it can be changed into a prime (195907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 902 + ... + 1097.

It is an arithmetic number, because the mean of its divisors is an integer number (28500).

2¹⁹⁵⁹⁰² is an apocalyptic number.

195902 is a deficient number, since it is larger than the sum of its proper divisors (146098).

195902 is a wasteful number, since it uses less digits than its factorization.

195902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 195902 is about 442.6081788670. The cubic root of 195902 is about 58.0781744121.

Subtracting 195902 from its reverse (209591), we obtain a square (13689 = 117²).

The spelling of 195902 in words is "one hundred ninety-five thousand, nine hundred two".