195188841 has 9 divisors (see below), whose sum is σ = 281999991. Its totient is φ = 130097952.

The previous prime is 195188839. The next prime is 195188857. The reversal of 195188841 is 148881591.

The square root of 195188841 is 13971.

It is a perfect power (a square), and thus also a powerful number.

195188841 is a `hidden beast` number, since 19 + 518 + 88 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23474025 + 171714816 = 4845^2 + 13104^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 195188841 - 2¹ = 195188839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195188891) 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 8 ways as a sum of consecutive naturals, for example, 39585 + ... + 44241.

Almost surely, 2^195188841 is an apocalyptic number.

195188841 is the 13971-st square number.

195188841 is the 6986-th centered octagonal number.

It is an amenable number.

195188841 is a deficient number, since it is larger than the sum of its proper divisors (86811150).

195188841 is an frugal number, since it uses more digits than its factorization.

195188841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320 (or 4660 counting only the distinct ones).

The product of its digits is 92160, while the sum is 45.

The cubic root of 195188841 is about 580.0761305140.

The spelling of 195188841 in words is "one hundred ninety-five million, one hundred eighty-eight thousand, eight hundred forty-one".