195565147 has 2 divisors, whose sum is σ = 195565148. Its totient is φ = 195565146.

The previous prime is 195565109. The next prime is 195565193. The reversal of 195565147 is 741565591.

195565147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195565147 is a prime.

It is a super-2 number, since 2×195565147² = 76491453442263218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (195565547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97782573 + 97782574.

It is an arithmetic number, because the mean of its divisors is an integer number (97782574).

Almost surely, 2^195565147 is an apocalyptic number.

195565147 is a deficient number, since it is larger than the sum of its proper divisors (1).

195565147 is an equidigital number, since it uses as much as digits as its factorization.

195565147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 43.

The square root of 195565147 is about 13984.4609120266. The cubic root of 195565147 is about 580.4486688874.

The spelling of 195565147 in words is "one hundred ninety-five million, five hundred sixty-five thousand, one hundred forty-seven".