195793937 has 2 divisors, whose sum is σ = 195793938. Its totient is φ = 195793936.

The previous prime is 195793907. The next prime is 195793951. The reversal of 195793937 is 739397591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115584001 + 80209936 = 10751^2 + 8956^2 .

It is an emirp because it is prime and its reverse (739397591) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195793937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195793907) 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, 97896968 + 97896969.

It is an arithmetic number, because the mean of its divisors is an integer number (97896969).

Almost surely, 2^195793937 is an apocalyptic number.

It is an amenable number.

195793937 is a deficient number, since it is larger than the sum of its proper divisors (1).

195793937 is an equidigital number, since it uses as much as digits as its factorization.

195793937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1607445, while the sum is 53.

The square root of 195793937 is about 13992.6386718160. The cubic root of 195793937 is about 580.6749346597.

The spelling of 195793937 in words is "one hundred ninety-five million, seven hundred ninety-three thousand, nine hundred thirty-seven".