Search a number
194867 is a prime number
BaseRepresentation
bin101111100100110011
3100220022022
4233210303
522213432
64102055
71441061
oct574463
9326268
10194867
11123452
129492b
136a90a
1451031
153cb12
hex2f933

194867 has 2 divisors, whose sum is σ = 194868. Its totient is φ = 194866.

The previous prime is 194863. The next prime is 194869. The reversal of 194867 is 768491.

It is a strong prime.

It is an emirp because it is prime and its reverse (768491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194867 - 22 = 194863 is a prime.

Together with 194869, 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 (194861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97433 + 97434.

It is an arithmetic number, because the mean of its divisors is an integer number (97434).

2194867 is an apocalyptic number.

194867 is a deficient number, since it is larger than the sum of its proper divisors (1).

194867 is an equidigital number, since it uses as much as digits as its factorization.

194867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 194867 is about 441.4374247841. The cubic root of 194867 is about 57.9757131768.

The spelling of 194867 in words is "one hundred ninety-four thousand, eight hundred sixty-seven".