3103999609 has 2 divisors, whose sum is σ = 3103999610. Its totient is φ = 3103999608.

The previous prime is 3103999607. The next prime is 3103999667. The reversal of 3103999609 is 9069993013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2682929209 + 421070400 = 51797^2 + 20520^2 .

It is a cyclic number.

It is not a de Polignac number, because 3103999609 - 2¹ = 3103999607 is a prime.

Together with 3103999607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3103999607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1551999804 + 1551999805.

It is an arithmetic number, because the mean of its divisors is an integer number (1551999805).

Almost surely, 2^3103999609 is an apocalyptic number.

It is an amenable number.

3103999609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3103999609 is an equidigital number, since it uses as much as digits as its factorization.

3103999609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 354294, while the sum is 49.

The square root of 3103999609 is about 55713.5495997159. The cubic root of 3103999609 is about 1458.7265447035.

The spelling of 3103999609 in words is "three billion, one hundred three million, nine hundred ninety-nine thousand, six hundred nine".