195609849 has 8 divisors (see below), whose sum is σ = 261002112. Its totient is φ = 130312080.

The previous prime is 195609847. The next prime is 195609853. The reversal of 195609849 is 948906591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 195609849 - 2¹ = 195609847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195609847) 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, 18642 + ... + 27179.

It is an arithmetic number, because the mean of its divisors is an integer number (32625264).

Almost surely, 2^195609849 is an apocalyptic number.

It is an amenable number.

195609849 is a deficient number, since it is larger than the sum of its proper divisors (65392263).

195609849 is a wasteful number, since it uses less digits than its factorization.

195609849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47247.

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 195609849 is about 13986.0590946842. The cubic root of 195609849 is about 580.4928915587.

The spelling of 195609849 in words is "one hundred ninety-five million, six hundred nine thousand, eight hundred forty-nine".