3117220609 has 2 divisors, whose sum is σ = 3117220610. Its totient is φ = 3117220608.

The previous prime is 3117220607. The next prime is 3117220633. The reversal of 3117220609 is 9060227113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2917620225 + 199600384 = 54015^2 + 14128^2 .

It is a cyclic number.

It is not a de Polignac number, because 3117220609 - 2¹ = 3117220607 is a prime.

Together with 3117220607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3117220607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558610304 + 1558610305.

It is an arithmetic number, because the mean of its divisors is an integer number (1558610305).

Almost surely, 2^3117220609 is an apocalyptic number.

It is an amenable number.

3117220609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117220609 is an equidigital number, since it uses as much as digits as its factorization.

3117220609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3117220609 is about 55832.0750912950. The cubic root of 3117220609 is about 1460.7946835604.

The spelling of 3117220609 in words is "three billion, one hundred seventeen million, two hundred twenty thousand, six hundred nine".