195748079 has 2 divisors, whose sum is σ = 195748080. Its totient is φ = 195748078.

The previous prime is 195748039. The next prime is 195748097. The reversal of 195748079 is 970847591.

Together with next prime (195748097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195748079 - 2¹² = 195743983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195748039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97874039 + 97874040.

It is an arithmetic number, because the mean of its divisors is an integer number (97874040).

Almost surely, 2^195748079 is an apocalyptic number.

195748079 is a deficient number, since it is larger than the sum of its proper divisors (1).

195748079 is an equidigital number, since it uses as much as digits as its factorization.

195748079 is an odious number, because the sum of its binary digits is odd.

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

The square root of 195748079 is about 13990.9999285255. Note that the first 4 decimals coincide. The cubic root of 195748079 is about 580.6295967383.

The spelling of 195748079 in words is "one hundred ninety-five million, seven hundred forty-eight thousand, seventy-nine".