4065613 has 2 divisors, whose sum is σ = 4065614. Its totient is φ = 4065612.

The previous prime is 4065599. The next prime is 4065637. The reversal of 4065613 is 3165604.

4065613 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., 2111209 + 1954404 = 1453^2 + 1398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4065613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4065653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2032806 + 2032807.

It is an arithmetic number, because the mean of its divisors is an integer number (2032807).

Almost surely, 2^4065613 is an apocalyptic number.

It is an amenable number.

4065613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4065613 is an equidigital number, since it uses as much as digits as its factorization.

4065613 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4065613 is about 2016.3365294514. The cubic root of 4065613 is about 159.6033534470.

Subtracting from 4065613 its reverse (3165604), we obtain a palindrome (900009).

The spelling of 4065613 in words is "four million, sixty-five thousand, six hundred thirteen".