195195907 has 2 divisors, whose sum is σ = 195195908. Its totient is φ = 195195906.

The previous prime is 195195899. The next prime is 195195937. The reversal of 195195907 is 709591591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195195907 - 2³ = 195195899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195195937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97597953 + 97597954.

It is an arithmetic number, because the mean of its divisors is an integer number (97597954).

Almost surely, 2^195195907 is an apocalyptic number.

195195907 is a deficient number, since it is larger than the sum of its proper divisors (1).

195195907 is an equidigital number, since it uses as much as digits as its factorization.

195195907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127575, while the sum is 46.

The square root of 195195907 is about 13971.2528786791. The cubic root of 195195907 is about 580.0831301773.

The spelling of 195195907 in words is "one hundred ninety-five million, one hundred ninety-five thousand, nine hundred seven".