3126666173 has 2 divisors, whose sum is σ = 3126666174. Its totient is φ = 3126666172.

The previous prime is 3126666157. The next prime is 3126666217. The reversal of 3126666173 is 3716666213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2987496964 + 139169209 = 54658^2 + 11797^2 .

It is a cyclic number.

It is not a de Polignac number, because 3126666173 - 2⁴ = 3126666157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3126666173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3126666113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1563333086 + 1563333087.

It is an arithmetic number, because the mean of its divisors is an integer number (1563333087).

Almost surely, 2^3126666173 is an apocalyptic number.

It is an amenable number.

3126666173 is a deficient number, since it is larger than the sum of its proper divisors (1).

3126666173 is an equidigital number, since it uses as much as digits as its factorization.

3126666173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 41.

The square root of 3126666173 is about 55916.6001559465. The cubic root of 3126666173 is about 1462.2686586425.

The spelling of 3126666173 in words is "three billion, one hundred twenty-six million, six hundred sixty-six thousand, one hundred seventy-three".