9903195089 has 2 divisors, whose sum is σ = 9903195090. Its totient is φ = 9903195088.

The previous prime is 9903195083. The next prime is 9903195101. The reversal of 9903195089 is 9805913099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9876980689 + 26214400 = 99383^2 + 5120^2 .

It is an emirp because it is prime and its reverse (9805913099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9903195089 - 2²⁴ = 9886417873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9903195089.

It is not a weakly prime, because it can be changed into another prime (9903195083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4951597544 + 4951597545.

It is an arithmetic number, because the mean of its divisors is an integer number (4951597545).

Almost surely, 2^9903195089 is an apocalyptic number.

It is an amenable number.

9903195089 is a deficient number, since it is larger than the sum of its proper divisors (1).

9903195089 is an equidigital number, since it uses as much as digits as its factorization.

9903195089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 53.

The square root of 9903195089 is about 99514.7983417542. The cubic root of 9903195089 is about 2147.4601404121.

The spelling of 9903195089 in words is "nine billion, nine hundred three million, one hundred ninety-five thousand, eighty-nine".