3218517073 has 2 divisors, whose sum is σ = 3218517074. Its totient is φ = 3218517072.

The previous prime is 3218517053. The next prime is 3218517079. The reversal of 3218517073 is 3707158123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3174533649 + 43983424 = 56343^2 + 6632^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218517073 - 2¹⁷ = 3218386001 is a prime.

It is not a weakly prime, because it can be changed into another prime (3218517079) 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, 1609258536 + 1609258537.

It is an arithmetic number, because the mean of its divisors is an integer number (1609258537).

Almost surely, 2^3218517073 is an apocalyptic number.

It is an amenable number.

3218517073 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218517073 is an equidigital number, since it uses as much as digits as its factorization.

3218517073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 3218517073 is about 56731.9757544191. The cubic root of 3218517073 is about 1476.4495294347.

The spelling of 3218517073 in words is "three billion, two hundred eighteen million, five hundred seventeen thousand, seventy-three".