195905950 has 24 divisors (see below), whose sum is σ = 380230128. Its totient is φ = 74954880.

The previous prime is 195905947. The next prime is 195905981. The reversal of 195905950 is 59509591.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 195905897 and 195905906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84027 + ... + 86326.

It is an arithmetic number, because the mean of its divisors is an integer number (15842922).

Almost surely, 2^195905950 is an apocalyptic number.

195905950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195905950 is a deficient number, since it is larger than the sum of its proper divisors (184324178).

195905950 is a wasteful number, since it uses less digits than its factorization.

195905950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170388 (or 170383 counting only the distinct ones).

The product of its (nonzero) digits is 91125, while the sum is 43.

The square root of 195905950 is about 13996.6406683890. The cubic root of 195905950 is about 580.7856475563.

The spelling of 195905950 in words is "one hundred ninety-five million, nine hundred five thousand, nine hundred fifty".