195748667 has 2 divisors, whose sum is σ = 195748668. Its totient is φ = 195748666.

The previous prime is 195748643. The next prime is 195748669. The reversal of 195748667 is 766847591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195748667 - 2⁸ = 195748411 is a prime.

Together with 195748669, 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 (195748669) 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, 97874333 + 97874334.

It is an arithmetic number, because the mean of its divisors is an integer number (97874334).

Almost surely, 2^195748667 is an apocalyptic number.

195748667 is a deficient number, since it is larger than the sum of its proper divisors (1).

195748667 is an equidigital number, since it uses as much as digits as its factorization.

195748667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The square root of 195748667 is about 13991.0209420185. The cubic root of 195748667 is about 580.6301781145.

The spelling of 195748667 in words is "one hundred ninety-five million, seven hundred forty-eight thousand, six hundred sixty-seven".