3109125473 has 2 divisors, whose sum is σ = 3109125474. Its totient is φ = 3109125472.

The previous prime is 3109125463. The next prime is 3109125497. The reversal of 3109125473 is 3745219013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2442039889 + 667085584 = 49417^2 + 25828^2 .

It is a cyclic number.

It is not a de Polignac number, because 3109125473 - 2¹⁰ = 3109124449 is a prime.

It is a super-2 number, since 2×3109125473² = 19333322413714947458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3109125413) 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, 1554562736 + 1554562737.

It is an arithmetic number, because the mean of its divisors is an integer number (1554562737).

Almost surely, 2^3109125473 is an apocalyptic number.

It is an amenable number.

3109125473 is a deficient number, since it is larger than the sum of its proper divisors (1).

3109125473 is an equidigital number, since it uses as much as digits as its factorization.

3109125473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 3109125473 is about 55759.5325751570. The cubic root of 3109125473 is about 1459.5290707657.

The spelling of 3109125473 in words is "three billion, one hundred nine million, one hundred twenty-five thousand, four hundred seventy-three".