195568361 has 2 divisors, whose sum is σ = 195568362. Its totient is φ = 195568360.

The previous prime is 195568337. The next prime is 195568381. The reversal of 195568361 is 163865591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135024400 + 60543961 = 11620^2 + 7781^2 .

It is a cyclic number.

It is not a de Polignac number, because 195568361 - 2⁶ = 195568297 is a prime.

It is not a weakly prime, because it can be changed into another prime (195568381) 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 as a sum of consecutive naturals, namely, 97784180 + 97784181.

It is an arithmetic number, because the mean of its divisors is an integer number (97784181).

Almost surely, 2^195568361 is an apocalyptic number.

It is an amenable number.

195568361 is a deficient number, since it is larger than the sum of its proper divisors (1).

195568361 is an equidigital number, since it uses as much as digits as its factorization.

195568361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The square root of 195568361 is about 13984.5758248150. The cubic root of 195568361 is about 580.4518486492.

The spelling of 195568361 in words is "one hundred ninety-five million, five hundred sixty-eight thousand, three hundred sixty-one".