195406201 has 2 divisors, whose sum is σ = 195406202. Its totient is φ = 195406200.

The previous prime is 195406157. The next prime is 195406207. The reversal of 195406201 is 102604591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189888400 + 5517801 = 13780^2 + 2349^2 .

It is a cyclic number.

It is not a de Polignac number, because 195406201 - 2⁹ = 195405689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195406201.

It is not a weakly prime, because it can be changed into another prime (195406207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97703100 + 97703101.

It is an arithmetic number, because the mean of its divisors is an integer number (97703101).

Almost surely, 2^195406201 is an apocalyptic number.

It is an amenable number.

195406201 is a deficient number, since it is larger than the sum of its proper divisors (1).

195406201 is an equidigital number, since it uses as much as digits as its factorization.

195406201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 195406201 is about 13978.7768062875. The cubic root of 195406201 is about 580.2913726246.

The spelling of 195406201 in words is "one hundred ninety-five million, four hundred six thousand, two hundred one".