195999102 has 60 divisors (see below), whose sum is σ = 475631640. Its totient is φ = 60298992.

The previous prime is 195999091. The next prime is 195999107. The reversal of 195999102 is 201999591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195999107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 23799 + ... + 30957.

It is an arithmetic number, because the mean of its divisors is an integer number (7927194).

Almost surely, 2^195999102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195999102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237815820).

195999102 is an abundant number, since it is smaller than the sum of its proper divisors (279632538).

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

195999102 is a wasteful number, since it uses less digits than its factorization.

195999102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199 (or 7177 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 45.

The square root of 195999102 is about 13999.9679285347. The cubic root of 195999102 is about 580.8776862309.

The spelling of 195999102 in words is "one hundred ninety-five million, nine hundred ninety-nine thousand, one hundred two".