195885803 has 2 divisors, whose sum is σ = 195885804. Its totient is φ = 195885802.

The previous prime is 195885761. The next prime is 195885829. The reversal of 195885803 is 308588591.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195885803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (195885853) 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, 97942901 + 97942902.

It is an arithmetic number, because the mean of its divisors is an integer number (97942902).

Almost surely, 2^195885803 is an apocalyptic number.

195885803 is a deficient number, since it is larger than the sum of its proper divisors (1).

195885803 is an equidigital number, since it uses as much as digits as its factorization.

195885803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 195885803 is about 13995.9209414743. The cubic root of 195885803 is about 580.7657375101.

The spelling of 195885803 in words is "one hundred ninety-five million, eight hundred eighty-five thousand, eight hundred three".