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195047 is a prime number
BaseRepresentation
bin101111100111100111
3100220112222
4233213213
522220142
64102555
71441436
oct574747
9326488
10195047
111235a6
1294a5b
136aa18
145111d
153cbd2
hex2f9e7

195047 has 2 divisors, whose sum is σ = 195048. Its totient is φ = 195046.

The previous prime is 195043. The next prime is 195049. The reversal of 195047 is 740591.

It is a strong prime.

It is an emirp because it is prime and its reverse (740591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195047 - 22 = 195043 is a prime.

Together with 195049, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 195047.

It is not a weakly prime, because it can be changed into another prime (195043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97523 + 97524.

It is an arithmetic number, because the mean of its divisors is an integer number (97524).

2195047 is an apocalyptic number.

195047 is a deficient number, since it is larger than the sum of its proper divisors (1).

195047 is an equidigital number, since it uses as much as digits as its factorization.

195047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 195047 is about 441.6412571307. The cubic root of 195047 is about 57.9935585395.

The spelling of 195047 in words is "one hundred ninety-five thousand, forty-seven".