1318848439 has 2 divisors, whose sum is σ = 1318848440. Its totient is φ = 1318848438.

The previous prime is 1318848437. The next prime is 1318848473. The reversal of 1318848439 is 9348488131.

It is a weak prime.

It is an emirp because it is prime and its reverse (9348488131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1318848439 - 2¹ = 1318848437 is a prime.

It is a super-2 number, since 2×1318848439² = 3478722410105473442, which contains 22 as substring.

Together with 1318848437, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1318848392 and 1318848401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318848437) 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, 659424219 + 659424220.

It is an arithmetic number, because the mean of its divisors is an integer number (659424220).

Almost surely, 2^1318848439 is an apocalyptic number.

1318848439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318848439 is an equidigital number, since it uses as much as digits as its factorization.

1318848439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 49.

The square root of 1318848439 is about 36315.9529545901. The cubic root of 1318848439 is about 1096.6422232685.

The spelling of 1318848439 in words is "one billion, three hundred eighteen million, eight hundred forty-eight thousand, four hundred thirty-nine".