1338997159 has 2 divisors, whose sum is σ = 1338997160. Its totient is φ = 1338997158.

The previous prime is 1338997157. The next prime is 1338997169. The reversal of 1338997159 is 9517998331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338997159 - 2¹ = 1338997157 is a prime.

Together with 1338997157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338997157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669498579 + 669498580.

It is an arithmetic number, because the mean of its divisors is an integer number (669498580).

Almost surely, 2^1338997159 is an apocalyptic number.

1338997159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338997159 is an equidigital number, since it uses as much as digits as its factorization.

1338997159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 55.

The square root of 1338997159 is about 36592.3101074529. The cubic root of 1338997159 is about 1102.1986764692.

The spelling of 1338997159 in words is "one billion, three hundred thirty-eight million, nine hundred ninety-seven thousand, one hundred fifty-nine".