4013313565 has 4 divisors (see below), whose sum is σ = 4815976284. Its totient is φ = 3210650848.

The previous prime is 4013313559. The next prime is 4013313569. The reversal of 4013313565 is 5653133104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1509011716 + 2504301849 = 38846^2 + 50043^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013313565 - 2¹⁷ = 4013182493 is a prime.

It is a super-2 number, since 2×4013313565² = 32213371542026018450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4013313569) 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 in 3 ways as a sum of consecutive naturals, for example, 401331352 + ... + 401331361.

It is an arithmetic number, because the mean of its divisors is an integer number (1203994071).

Almost surely, 2^4013313565 is an apocalyptic number.

It is an amenable number.

4013313565 is a deficient number, since it is larger than the sum of its proper divisors (802662719).

4013313565 is an equidigital number, since it uses as much as digits as its factorization.

4013313565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802662718.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 4013313565 is about 63350.7187409898. The cubic root of 4013313565 is about 1589.1602655496.

Adding to 4013313565 its reverse (5653133104), we get a palindrome (9666446669).

The spelling of 4013313565 in words is "four billion, thirteen million, three hundred thirteen thousand, five hundred sixty-five".