1398117559 has 2 divisors, whose sum is σ = 1398117560. Its totient is φ = 1398117558.

The previous prime is 1398117509. The next prime is 1398117599. The reversal of 1398117559 is 9557118931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1398117559 - 2⁹ = 1398117047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1398117509) 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, 699058779 + 699058780.

It is an arithmetic number, because the mean of its divisors is an integer number (699058780).

Almost surely, 2^1398117559 is an apocalyptic number.

1398117559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398117559 is an equidigital number, since it uses as much as digits as its factorization.

1398117559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 49.

The square root of 1398117559 is about 37391.4102301585. The cubic root of 1398117559 is about 1118.1873205371.

The spelling of 1398117559 in words is "one billion, three hundred ninety-eight million, one hundred seventeen thousand, five hundred fifty-nine".