220013613 has 12 divisors (see below), whose sum is σ = 317946460. Its totient is φ = 146606976.

The previous prime is 220013587. The next prime is 220013617. The reversal of 220013613 is 316310022.

It can be written as a sum of positive squares in 2 ways, for example, as 129345129 + 90668484 = 11373^2 + 9522^2 .

It is not a de Polignac number, because 220013613 - 2¹⁴ = 219997229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220013617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21183 + ... + 29811.

Almost surely, 2^220013613 is an apocalyptic number.

It is an amenable number.

220013613 is a deficient number, since it is larger than the sum of its proper divisors (97932847).

220013613 is a wasteful number, since it uses less digits than its factorization.

220013613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11468 (or 11465 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 220013613 is about 14832.8558612292. The cubic root of 220013613 is about 603.6935248024.

Adding to 220013613 its reverse (316310022), we get a palindrome (536323635).

The spelling of 220013613 in words is "two hundred twenty million, thirteen thousand, six hundred thirteen".