195102097 has 2 divisors, whose sum is σ = 195102098. Its totient is φ = 195102096.

The previous prime is 195102007. The next prime is 195102101. The reversal of 195102097 is 790201591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174662656 + 20439441 = 13216^2 + 4521^2 .

It is an emirp because it is prime and its reverse (790201591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195102097 - 2¹⁹ = 194577809 is a prime.

It is not a weakly prime, because it can be changed into another prime (195102007) 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, 97551048 + 97551049.

It is an arithmetic number, because the mean of its divisors is an integer number (97551049).

Almost surely, 2^195102097 is an apocalyptic number.

It is an amenable number.

195102097 is a deficient number, since it is larger than the sum of its proper divisors (1).

195102097 is an equidigital number, since it uses as much as digits as its factorization.

195102097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 195102097 is about 13967.8952244066. The cubic root of 195102097 is about 579.9901871110.

The spelling of 195102097 in words is "one hundred ninety-five million, one hundred two thousand, ninety-seven".