195865339 has 2 divisors, whose sum is σ = 195865340. Its totient is φ = 195865338.

The previous prime is 195865297. The next prime is 195865363. The reversal of 195865339 is 933568591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 195865339 - 2⁹ = 195864827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195865292 and 195865301.

It is not a weakly prime, because it can be changed into another prime (195865379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97932669 + 97932670.

It is an arithmetic number, because the mean of its divisors is an integer number (97932670).

Almost surely, 2^195865339 is an apocalyptic number.

195865339 is a deficient number, since it is larger than the sum of its proper divisors (1).

195865339 is an equidigital number, since it uses as much as digits as its factorization.

195865339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 49.

The square root of 195865339 is about 13995.1898522314. The cubic root of 195865339 is about 580.7455127945.

The spelling of 195865339 in words is "one hundred ninety-five million, eight hundred sixty-five thousand, three hundred thirty-nine".