195709216 has 24 divisors (see below), whose sum is σ = 386681904. Its totient is φ = 97504320.

The previous prime is 195709207. The next prime is 195709223. The reversal of 195709216 is 612907591.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750 + ... + 19861.

It is an arithmetic number, because the mean of its divisors is an integer number (16111746).

Almost surely, 2^195709216 is an apocalyptic number.

195709216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

195709216 is a deficient number, since it is larger than the sum of its proper divisors (190972688).

195709216 is a wasteful number, since it uses less digits than its factorization.

195709216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21904 (or 21896 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 195709216 is about 13989.6110024546. The cubic root of 195709216 is about 580.5911689427.

The spelling of 195709216 in words is "one hundred ninety-five million, seven hundred nine thousand, two hundred sixteen".