195363407 has 2 divisors, whose sum is σ = 195363408. Its totient is φ = 195363406.

The previous prime is 195363397. The next prime is 195363409. The reversal of 195363407 is 704363591.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (704363591) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195363407 is a prime.

Together with 195363409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195363409) 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, 97681703 + 97681704.

It is an arithmetic number, because the mean of its divisors is an integer number (97681704).

Almost surely, 2^195363407 is an apocalyptic number.

195363407 is a deficient number, since it is larger than the sum of its proper divisors (1).

195363407 is an equidigital number, since it uses as much as digits as its factorization.

195363407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 195363407 is about 13977.2460449117. The cubic root of 195363407 is about 580.2490082201.

The spelling of 195363407 in words is "one hundred ninety-five million, three hundred sixty-three thousand, four hundred seven".