1298483309 has 2 divisors, whose sum is σ = 1298483310. Its totient is φ = 1298483308.

The previous prime is 1298483293. The next prime is 1298483311. The reversal of 1298483309 is 9033848921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 945870025 + 352613284 = 30755^2 + 18778^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298483309 - 2⁴ = 1298483293 is a prime.

Together with 1298483311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1298483359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649241654 + 649241655.

It is an arithmetic number, because the mean of its divisors is an integer number (649241655).

Almost surely, 2^1298483309 is an apocalyptic number.

It is an amenable number.

1298483309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298483309 is an equidigital number, since it uses as much as digits as its factorization.

1298483309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1298483309 is about 36034.4738965341. The cubic root of 1298483309 is about 1090.9682805172.

The spelling of 1298483309 in words is "one billion, two hundred ninety-eight million, four hundred eighty-three thousand, three hundred nine".