220013569 has 4 divisors (see below), whose sum is σ = 220044244. Its totient is φ = 219982896.

The previous prime is 220013543. The next prime is 220013587. The reversal of 220013569 is 965310022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 965310022 = 2 ⋅482655011.

It can be written as a sum of positive squares in 2 ways, for example, as 44715969 + 175297600 = 6687^2 + 13240^2 .

It is a cyclic number.

It is not a de Polignac number, because 220013569 - 2¹³ = 220005377 is a prime.

It is a super-2 number, since 2×220013569² = 96811941088235522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220013869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819 + ... + 21055.

It is an arithmetic number, because the mean of its divisors is an integer number (55011061).

Almost surely, 2^220013569 is an apocalyptic number.

It is an amenable number.

220013569 is a deficient number, since it is larger than the sum of its proper divisors (30675).

220013569 is a wasteful number, since it uses less digits than its factorization.

220013569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30674.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 220013569 is about 14832.8543780353. The cubic root of 220013569 is about 603.6934845587.

The spelling of 220013569 in words is "two hundred twenty million, thirteen thousand, five hundred sixty-nine".