3216139529 has 2 divisors, whose sum is σ = 3216139530. Its totient is φ = 3216139528.

The previous prime is 3216139513. The next prime is 3216139571. The reversal of 3216139529 is 9259316123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2536129600 + 680009929 = 50360^2 + 26077^2 .

It is an emirp because it is prime and its reverse (9259316123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3216139529 - 2⁴ = 3216139513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3216130529) 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, 1608069764 + 1608069765.

It is an arithmetic number, because the mean of its divisors is an integer number (1608069765).

Almost surely, 2^3216139529 is an apocalyptic number.

It is an amenable number.

3216139529 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216139529 is an equidigital number, since it uses as much as digits as its factorization.

3216139529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 3216139529 is about 56711.0177037937. The cubic root of 3216139529 is about 1476.0858848987.

The spelling of 3216139529 in words is "three billion, two hundred sixteen million, one hundred thirty-nine thousand, five hundred twenty-nine".