3205401613 has 2 divisors, whose sum is σ = 3205401614. Its totient is φ = 3205401612.

The previous prime is 3205401611. The next prime is 3205401659. The reversal of 3205401613 is 3161045023.

3205401613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1667742244 + 1537659369 = 40838^2 + 39213^2 .

It is a cyclic number.

It is not a de Polignac number, because 3205401613 - 2¹ = 3205401611 is a prime.

Together with 3205401611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3205401611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602700806 + 1602700807.

It is an arithmetic number, because the mean of its divisors is an integer number (1602700807).

Almost surely, 2^3205401613 is an apocalyptic number.

It is an amenable number.

3205401613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205401613 is an equidigital number, since it uses as much as digits as its factorization.

3205401613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3205401613 is about 56616.2663286798. The cubic root of 3205401613 is about 1474.4412880392.

Adding to 3205401613 its reverse (3161045023), we get a palindrome (6366446636).

The spelling of 3205401613 in words is "three billion, two hundred five million, four hundred one thousand, six hundred thirteen".