195788205 has 16 divisors (see below), whose sum is σ = 348068160. Its totient is φ = 104420304.

The previous prime is 195788191. The next prime is 195788227. The reversal of 195788205 is 502887591.

It is a happy number.

It is not a de Polignac number, because 195788205 - 2¹⁹ = 195263917 is a prime.

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

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 725007 + ... + 725276.

It is an arithmetic number, because the mean of its divisors is an integer number (21754260).

Almost surely, 2^195788205 is an apocalyptic number.

195788205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

195788205 is a deficient number, since it is larger than the sum of its proper divisors (152279955).

195788205 is a wasteful number, since it uses less digits than its factorization.

195788205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450297 (or 1450291 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 195788205 is about 13992.4338483339. The cubic root of 195788205 is about 580.6692680538.

The spelling of 195788205 in words is "one hundred ninety-five million, seven hundred eighty-eight thousand, two hundred five".