228914569 has 4 divisors (see below), whose sum is σ = 246523396. Its totient is φ = 211305744.

The previous prime is 228914557. The next prime is 228914593. The reversal of 228914569 is 965419822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 965419822 = 2 ⋅482709911.

It can be written as a sum of positive squares in 2 ways, for example, as 48818169 + 180096400 = 6987^2 + 13420^2 .

It is not a de Polignac number, because 228914569 - 2¹⁵ = 228881801 is a prime.

It is a super-2 number, since 2×228914569² = 104803759800911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228914599) 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, 8804394 + ... + 8804419.

It is an arithmetic number, because the mean of its divisors is an integer number (61630849).

Almost surely, 2^228914569 is an apocalyptic number.

It is an amenable number.

228914569 is a deficient number, since it is larger than the sum of its proper divisors (17608827).

228914569 is a wasteful number, since it uses less digits than its factorization.

228914569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17608826.

The product of its digits is 311040, while the sum is 46.

The square root of 228914569 is about 15129.9229674179. The cubic root of 228914569 is about 611.7272277875.

The spelling of 228914569 in words is "two hundred twenty-eight million, nine hundred fourteen thousand, five hundred sixty-nine".