1300939999 has 2 divisors, whose sum is σ = 1300940000. Its totient is φ = 1300939998.

The previous prime is 1300939987. The next prime is 1300940023. The reversal of 1300939999 is 9999390031.

It is a weak prime.

It is an emirp because it is prime and its reverse (9999390031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300939999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1300939949) 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, 650469999 + 650470000.

It is an arithmetic number, because the mean of its divisors is an integer number (650470000).

Almost surely, 2^1300939999 is an apocalyptic number.

1300939999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300939999 is an equidigital number, since it uses as much as digits as its factorization.

1300939999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 531441, while the sum is 52.

The square root of 1300939999 is about 36068.5458398311. The cubic root of 1300939999 is about 1091.6558730734.

The spelling of 1300939999 in words is "one billion, three hundred million, nine hundred thirty-nine thousand, nine hundred ninety-nine".