195259 has 2 divisors, whose sum is σ = 195260.
Its totient is φ = 195258.
The previous prime is 195253. The next prime is 195271. The reversal of 195259 is 952591.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 195259 - 27 = 195131 is a prime.
It is a super-3 number, since 3×1952593 = 22333379054276937, which contains 333 as substring.
195259 is a lucky number.
It is a plaindrome in base 11.
It is a self number, because there is not a number n which added to its sum of digits gives 195259.
It is not a weakly prime, because it can be changed into another prime (195253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97629 + 97630.
It is an arithmetic number, because the mean of its divisors is an integer number (97630).
2195259 is an apocalyptic number.
195259 is a deficient number, since it is larger than the sum of its proper divisors (1).
195259 is an equidigital number, since it uses as much as digits as its factorization.
195259 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4050, while the sum is 31.
The square root of 195259 is about 441.8812057556.
The cubic root of 195259 is about 58.0145623363.
It can be divided in two parts, 195 and 259, that multiplied together give a palindrome (50505).
The spelling of 195259 in words is "one hundred ninety-five thousand, two hundred fifty-nine".