195163201 has 2 divisors, whose sum is σ = 195163202. Its totient is φ = 195163200.

The previous prime is 195163183. The next prime is 195163253. The reversal of 195163201 is 102361591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191102976 + 4060225 = 13824^2 + 2015^2 .

It is an emirp because it is prime and its reverse (102361591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195163201 - 2⁵ = 195163169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195163201.

It is not a weakly prime, because it can be changed into another prime (195163291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97581600 + 97581601.

It is an arithmetic number, because the mean of its divisors is an integer number (97581601).

Almost surely, 2^195163201 is an apocalyptic number.

It is an amenable number.

195163201 is a deficient number, since it is larger than the sum of its proper divisors (1).

195163201 is an equidigital number, since it uses as much as digits as its factorization.

195163201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 195163201 is about 13970.0823548038. The cubic root of 195163201 is about 580.0507298077.

It can be divided in two parts, 195163 and 201, that added together give a square (195364 = 442²).

The spelling of 195163201 in words is "one hundred ninety-five million, one hundred sixty-three thousand, two hundred one".