195851495 has 16 divisors (see below), whose sum is σ = 268843008. Its totient is φ = 134174880.

The previous prime is 195851489. The next prime is 195851497. The reversal of 195851495 is 594158591.

It is a happy number.

It is not a de Polignac number, because 195851495 - 2⁴ = 195851479 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195851497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53060 + ... + 56630.

It is an arithmetic number, because the mean of its divisors is an integer number (16802688).

Almost surely, 2^195851495 is an apocalyptic number.

195851495 is a deficient number, since it is larger than the sum of its proper divisors (72991513).

195851495 is a wasteful number, since it uses less digits than its factorization.

195851495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150.

The product of its digits is 324000, while the sum is 47.

The square root of 195851495 is about 13994.6952449848. The cubic root of 195851495 is about 580.7318298728.

The spelling of 195851495 in words is "one hundred ninety-five million, eight hundred fifty-one thousand, four hundred ninety-five".