195449 has 4 divisors (see below), whose sum is σ = 206964. Its totient is φ = 183936.

The previous prime is 195443. The next prime is 195457. The reversal of 195449 is 944591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135424 + 60025 = 368^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 195449 - 2⁸ = 195193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195443) 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 3 ways as a sum of consecutive naturals, for example, 5732 + ... + 5765.

It is an arithmetic number, because the mean of its divisors is an integer number (51741).

2¹⁹⁵⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

195449 is a deficient number, since it is larger than the sum of its proper divisors (11515).

195449 is a wasteful number, since it uses less digits than its factorization.

195449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11514.

The product of its digits is 6480, while the sum is 32.

The square root of 195449 is about 442.0961433896. The cubic root of 195449 is about 58.0333735793.

The spelling of 195449 in words is "one hundred ninety-five thousand, four hundred forty-nine".