195316505 has 8 divisors (see below), whose sum is σ = 234462912. Its totient is φ = 156197808.

The previous prime is 195316493. The next prime is 195316507. The reversal of 195316505 is 505613591.

It is a happy number.

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 195316505 - 2⁴ = 195316489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195316507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14762 + ... + 24668.

It is an arithmetic number, because the mean of its divisors is an integer number (29307864).

Almost surely, 2^195316505 is an apocalyptic number.

It is an amenable number.

195316505 is a deficient number, since it is larger than the sum of its proper divisors (39146407).

195316505 is an equidigital number, since it uses as much as digits as its factorization.

195316505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 195316505 is about 13975.5681458751. The cubic root of 195316505 is about 580.2025699480.

The spelling of 195316505 in words is "one hundred ninety-five million, three hundred sixteen thousand, five hundred five".