195530497 has 2 divisors, whose sum is σ = 195530498. Its totient is φ = 195530496.

The previous prime is 195530411. The next prime is 195530509. The reversal of 195530497 is 794035591.

195530497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104060401 + 91470096 = 10201^2 + 9564^2 .

It is an emirp because it is prime and its reverse (794035591) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195530497 is a prime.

It is not a weakly prime, because it can be changed into another prime (195530297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97765248 + 97765249.

It is an arithmetic number, because the mean of its divisors is an integer number (97765249).

Almost surely, 2^195530497 is an apocalyptic number.

It is an amenable number.

195530497 is a deficient number, since it is larger than the sum of its proper divisors (1).

195530497 is an equidigital number, since it uses as much as digits as its factorization.

195530497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 195530497 is about 13983.2219820755. The cubic root of 195530497 is about 580.4143857944.

The spelling of 195530497 in words is "one hundred ninety-five million, five hundred thirty thousand, four hundred ninety-seven".