195955199 has 8 divisors (see below), whose sum is σ = 215768448. Its totient is φ = 176475160.

The previous prime is 195955187. The next prime is 195955213. The reversal of 195955199 is 991559591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195955199 - 2¹² = 195951103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195955199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195955129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82067 + ... + 84420.

It is an arithmetic number, because the mean of its divisors is an integer number (26971056).

Almost surely, 2^195955199 is an apocalyptic number.

195955199 is a deficient number, since it is larger than the sum of its proper divisors (19813249).

195955199 is a wasteful number, since it uses less digits than its factorization.

195955199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166605.

The product of its digits is 820125, while the sum is 53.

The square root of 195955199 is about 13998.3998728426. The cubic root of 195955199 is about 580.8343115808.

The spelling of 195955199 in words is "one hundred ninety-five million, nine hundred fifty-five thousand, one hundred ninety-nine".