195748097 has 2 divisors, whose sum is σ = 195748098. Its totient is φ = 195748096.

The previous prime is 195748079. The next prime is 195748099. The reversal of 195748097 is 790847591.

Together with previous prime (195748079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195748081 + 16 = 13991^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 195748097 - 2¹⁴ = 195731713 is a prime.

Together with 195748099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195748099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97874048 + 97874049.

It is an arithmetic number, because the mean of its divisors is an integer number (97874049).

Almost surely, 2^195748097 is an apocalyptic number.

It is an amenable number.

195748097 is a deficient number, since it is larger than the sum of its proper divisors (1).

195748097 is an equidigital number, since it uses as much as digits as its factorization.

195748097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 195748097 is about 13991.0005717961. Note that the first 3 decimals coincide. The cubic root of 195748097 is about 580.6296145355.

The spelling of 195748097 in words is "one hundred ninety-five million, seven hundred forty-eight thousand, ninety-seven".