195023 has 2 divisors, whose sum is σ = 195024. Its totient is φ = 195022.

The previous prime is 194989. The next prime is 195029. The reversal of 195023 is 320591.

It is a strong prime.

It is an emirp because it is prime and its reverse (320591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195023 - 2^{8} = 194767 is a prime.

It is a junction number, because it is equal to *n*+sod(*n*) for *n* = 194986 and 195004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195029) 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, 97511 + 97512.

It is an arithmetic number, because the mean of its divisors is an integer number (97512).

2^{195023} is an apocalyptic number.

195023 is a deficient number, since it is larger than the sum of its proper divisors (1).

195023 is an equidigital number, since it uses as much as digits as its factorization.

195023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 195023 is about 441.6140849203. The cubic root of 195023 is about 57.9911797923.

It can be divided in two parts, 1950 and 23, that multiplied together give a triangular number (44850 = T_{299}).

The spelling of 195023 in words is "one hundred ninety-five thousand, twenty-three".

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.119 sec. • engine limits •