1299983533 has 2 divisors, whose sum is σ = 1299983534. Its totient is φ = 1299983532.

The previous prime is 1299983501. The next prime is 1299983561. The reversal of 1299983533 is 3353899921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946054564 + 353928969 = 30758^2 + 18813^2 .

It is an emirp because it is prime and its reverse (3353899921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1299983533 - 2⁵ = 1299983501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299981533) 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, 649991766 + 649991767.

It is an arithmetic number, because the mean of its divisors is an integer number (649991767).

Almost surely, 2^1299983533 is an apocalyptic number.

It is an amenable number.

1299983533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299983533 is an equidigital number, since it uses as much as digits as its factorization.

1299983533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The square root of 1299983533 is about 36055.2843977135. The cubic root of 1299983533 is about 1091.3882748451.

The spelling of 1299983533 in words is "one billion, two hundred ninety-nine million, nine hundred eighty-three thousand, five hundred thirty-three".