195755773 has 2 divisors, whose sum is σ = 195755774. Its totient is φ = 195755772.

The previous prime is 195755743. The next prime is 195755779. The reversal of 195755773 is 377557591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186404409 + 9351364 = 13653^2 + 3058^2 .

It is a cyclic number.

It is not a de Polignac number, because 195755773 - 2⁵ = 195755741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195755779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97877886 + 97877887.

It is an arithmetic number, because the mean of its divisors is an integer number (97877887).

Almost surely, 2^195755773 is an apocalyptic number.

It is an amenable number.

195755773 is a deficient number, since it is larger than the sum of its proper divisors (1).

195755773 is an equidigital number, since it uses as much as digits as its factorization.

195755773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1157625, while the sum is 49.

The square root of 195755773 is about 13991.2748883009. The cubic root of 195755773 is about 580.6372039744.

The spelling of 195755773 in words is "one hundred ninety-five million, seven hundred fifty-five thousand, seven hundred seventy-three".