195575957 has 6 divisors (see below), whose sum is σ = 196219062. Its totient is φ = 194934632.

The previous prime is 195575951. The next prime is 195575983. The reversal of 195575957 is 759575591.

It can be written as a sum of positive squares in only one way, i.e., 122456356 + 73119601 = 11066^2 + 8551^2 .

It is not a de Polignac number, because 195575957 - 2⁶ = 195575893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195575899 and 195575908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195575951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252623 + ... + 253395.

It is an arithmetic number, because the mean of its divisors is an integer number (32703177).

Almost surely, 2^195575957 is an apocalyptic number.

It is an amenable number.

195575957 is a deficient number, since it is larger than the sum of its proper divisors (643105).

195575957 is an frugal number, since it uses more digits than its factorization.

195575957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1276 counting only the distinct ones).

The product of its digits is 2480625, while the sum is 53.

The square root of 195575957 is about 13984.8474071046. The cubic root of 195575957 is about 580.4593635921.

The spelling of 195575957 in words is "one hundred ninety-five million, five hundred seventy-five thousand, nine hundred fifty-seven".