1338908539 has 2 divisors, whose sum is σ = 1338908540. Its totient is φ = 1338908538.

The previous prime is 1338908533. The next prime is 1338908551. The reversal of 1338908539 is 9358098331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338908539 - 2³ = 1338908531 is a prime.

It is a super-2 number, since 2×1338908539² = 3585352151614229042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1338908492 and 1338908501.

It is not a weakly prime, because it can be changed into another prime (1338908531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669454269 + 669454270.

It is an arithmetic number, because the mean of its divisors is an integer number (669454270).

Almost surely, 2^1338908539 is an apocalyptic number.

1338908539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338908539 is an equidigital number, since it uses as much as digits as its factorization.

1338908539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 1338908539 is about 36591.0991772589. The cubic root of 1338908539 is about 1102.1743600119.

The spelling of 1338908539 in words is "one billion, three hundred thirty-eight million, nine hundred eight thousand, five hundred thirty-nine".