195804061 has 2 divisors, whose sum is σ = 195804062. Its totient is φ = 195804060.

The previous prime is 195804053. The next prime is 195804073. The reversal of 195804061 is 160408591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113103225 + 82700836 = 10635^2 + 9094^2 .

It is a cyclic number.

It is not a de Polignac number, because 195804061 - 2³ = 195804053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195804001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97902030 + 97902031.

It is an arithmetic number, because the mean of its divisors is an integer number (97902031).

Almost surely, 2^195804061 is an apocalyptic number.

It is an amenable number.

195804061 is a deficient number, since it is larger than the sum of its proper divisors (1).

195804061 is an equidigital number, since it uses as much as digits as its factorization.

195804061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 195804061 is about 13993.0004287858. Note that the first 3 decimals coincide. The cubic root of 195804061 is about 580.6849428887.

The spelling of 195804061 in words is "one hundred ninety-five million, eight hundred four thousand, sixty-one".