195120187 has 2 divisors, whose sum is σ = 195120188. Its totient is φ = 195120186.

The previous prime is 195120181. The next prime is 195120193. The reversal of 195120187 is 781021591.

It is a happy number.

195120187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (195120181) and next prime (195120193).

It is a cyclic number.

It is not a de Polignac number, because 195120187 - 2³ = 195120179 is a prime.

It is not a weakly prime, because it can be changed into another prime (195120181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97560093 + 97560094.

It is an arithmetic number, because the mean of its divisors is an integer number (97560094).

Almost surely, 2^195120187 is an apocalyptic number.

195120187 is a deficient number, since it is larger than the sum of its proper divisors (1).

195120187 is an equidigital number, since it uses as much as digits as its factorization.

195120187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 195120187 is about 13968.5427658006. The cubic root of 195120187 is about 580.0081122528.

The spelling of 195120187 in words is "one hundred ninety-five million, one hundred twenty thousand, one hundred eighty-seven".