195849895 has 4 divisors (see below), whose sum is σ = 235019880. Its totient is φ = 156679912.

The previous prime is 195849883. The next prime is 195849919. The reversal of 195849895 is 598948591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 598948591 = 43 ⋅13929037.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195849895 is a prime.

It is a super-2 number, since 2×195849895² = 76714362743022050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) 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 an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19584985 + ... + 19584994.

It is an arithmetic number, because the mean of its divisors is an integer number (58754970).

Almost surely, 2^195849895 is an apocalyptic number.

195849895 is a deficient number, since it is larger than the sum of its proper divisors (39169985).

195849895 is an equidigital number, since it uses as much as digits as its factorization.

195849895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169984.

The product of its digits is 4665600, while the sum is 58.

The square root of 195849895 is about 13994.6380803506. The cubic root of 195849895 is about 580.7302484476.

The spelling of 195849895 in words is "one hundred ninety-five million, eight hundred forty-nine thousand, eight hundred ninety-five".