19243000193 has 2 divisors, whose sum is σ = 19243000194. Its totient is φ = 19243000192.

The previous prime is 19243000157. The next prime is 19243000207. The reversal of 19243000193 is 39100034291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15843760384 + 3399239809 = 125872^2 + 58303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19243000193 is a prime.

It is not a weakly prime, because it can be changed into another prime (19243000123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9621500096 + 9621500097.

It is an arithmetic number, because the mean of its divisors is an integer number (9621500097).

Almost surely, 2^19243000193 is an apocalyptic number.

It is an amenable number.

19243000193 is a deficient number, since it is larger than the sum of its proper divisors (1).

19243000193 is an equidigital number, since it uses as much as digits as its factorization.

19243000193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 19243000193 in words is "nineteen billion, two hundred forty-three million, one hundred ninety-three", and thus it is an aban number.