195779033 has 2 divisors, whose sum is σ = 195779034. Its totient is φ = 195779032.

The previous prime is 195778993. The next prime is 195779047. The reversal of 195779033 is 330977591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179238544 + 16540489 = 13388^2 + 4067^2 .

It is a cyclic number.

It is not a de Polignac number, because 195779033 - 2⁶ = 195778969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195779053) 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 as a sum of consecutive naturals, namely, 97889516 + 97889517.

It is an arithmetic number, because the mean of its divisors is an integer number (97889517).

Almost surely, 2^195779033 is an apocalyptic number.

It is an amenable number.

195779033 is a deficient number, since it is larger than the sum of its proper divisors (1).

195779033 is an equidigital number, since it uses as much as digits as its factorization.

195779033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 195779033 is about 13992.1060959385. The cubic root of 195779033 is about 580.6602004635.

The spelling of 195779033 in words is "one hundred ninety-five million, seven hundred seventy-nine thousand, thirty-three".