195169801 has 2 divisors, whose sum is σ = 195169802. Its totient is φ = 195169800.

The previous prime is 195169771. The next prime is 195169811. The reversal of 195169801 is 108961591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177955600 + 17214201 = 13340^2 + 4149^2 .

It is a cyclic number.

It is not a de Polignac number, because 195169801 - 2¹⁹ = 194645513 is a prime.

It is not a weakly prime, because it can be changed into another prime (195169811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97584900 + 97584901.

It is an arithmetic number, because the mean of its divisors is an integer number (97584901).

Almost surely, 2^195169801 is an apocalyptic number.

It is an amenable number.

195169801 is a deficient number, since it is larger than the sum of its proper divisors (1).

195169801 is an equidigital number, since it uses as much as digits as its factorization.

195169801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 40.

The square root of 195169801 is about 13970.3185718866. The cubic root of 195169801 is about 580.0572684237.

The spelling of 195169801 in words is "one hundred ninety-five million, one hundred sixty-nine thousand, eight hundred one".