195887105 has 8 divisors (see below), whose sum is σ = 238285032. Its totient is φ = 154562688.

The previous prime is 195887101. The next prime is 195887119. The reversal of 195887105 is 501788591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21224449 + 174662656 = 4607^2 + 13216^2 .

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 195887105 - 2² = 195887101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (195887101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267974 + ... + 268703.

It is an arithmetic number, because the mean of its divisors is an integer number (29785629).

It is a Proth number, since it is equal to 2989 ⋅ 2¹⁶ + 1 and 2989 < 2¹⁶.

Almost surely, 2^195887105 is an apocalyptic number.

It is an amenable number.

195887105 is a deficient number, since it is larger than the sum of its proper divisors (42397927).

195887105 is an equidigital number, since it uses as much as digits as its factorization.

195887105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536755.

The product of its (nonzero) digits is 100800, while the sum is 44.

The square root of 195887105 is about 13995.9674549493. The cubic root of 195887105 is about 580.7670242382.

The spelling of 195887105 in words is "one hundred ninety-five million, eight hundred eighty-seven thousand, one hundred five".