195913 has 2 divisors, whose sum is σ = 195914. Its totient is φ = 195912.

The previous prime is 195907. The next prime is 195919. The reversal of 195913 is 319591.

It is a balanced prime because it is at equal distance from previous prime (195907) and next prime (195919).

It can be written as a sum of positive squares in only one way, i.e., 150544 + 45369 = 388^2 + 213^2 .

It is an emirp because it is prime and its reverse (319591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195913 - 2⁹ = 195401 is a prime.

It is not a weakly prime, because it can be changed into another prime (195919) 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, 97956 + 97957.

It is an arithmetic number, because the mean of its divisors is an integer number (97957).

2¹⁹⁵⁹¹³ is an apocalyptic number.

It is an amenable number.

195913 is a deficient number, since it is larger than the sum of its proper divisors (1).

195913 is an equidigital number, since it uses as much as digits as its factorization.

195913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1215, while the sum is 28.

The square root of 195913 is about 442.6206050332. The cubic root of 195913 is about 58.0792614317.

The spelling of 195913 in words is "one hundred ninety-five thousand, nine hundred thirteen".