195087713 has 2 divisors, whose sum is σ = 195087714. Its totient is φ = 195087712.

The previous prime is 195087707. The next prime is 195087749. The reversal of 195087713 is 317780591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192876544 + 2211169 = 13888^2 + 1487^2 .

It is an emirp because it is prime and its reverse (317780591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195087713 - 2⁸ = 195087457 is a prime.

It is not a weakly prime, because it can be changed into another prime (195087413) 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, 97543856 + 97543857.

It is an arithmetic number, because the mean of its divisors is an integer number (97543857).

Almost surely, 2^195087713 is an apocalyptic number.

It is an amenable number.

195087713 is a deficient number, since it is larger than the sum of its proper divisors (1).

195087713 is an equidigital number, since it uses as much as digits as its factorization.

195087713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 195087713 is about 13967.3803198739. The cubic root of 195087713 is about 579.9759334049.

The spelling of 195087713 in words is "one hundred ninety-five million, eighty-seven thousand, seven hundred thirteen".