195539853 has 16 divisors (see below), whose sum is σ = 265325760. Its totient is φ = 128075904.

The previous prime is 195539821. The next prime is 195539867. The reversal of 195539853 is 358935591.

It is a happy number.

It is not a de Polignac number, because 195539853 - 2⁵ = 195539821 is a prime.

It is a super-2 number, since 2×195539853² = 76471668222523218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195539803) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41275 + ... + 45767.

It is an arithmetic number, because the mean of its divisors is an integer number (16582860).

Almost surely, 2^195539853 is an apocalyptic number.

It is an amenable number.

195539853 is a deficient number, since it is larger than the sum of its proper divisors (69785907).

195539853 is a wasteful number, since it uses less digits than its factorization.

195539853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748.

The product of its digits is 729000, while the sum is 48.

The square root of 195539853 is about 13983.5565218581. The cubic root of 195539853 is about 580.4236431233.

The spelling of 195539853 in words is "one hundred ninety-five million, five hundred thirty-nine thousand, eight hundred fifty-three".