228113 has 2 divisors, whose sum is σ = 228114. Its totient is φ = 228112.

The previous prime is 228103. The next prime is 228127. The reversal of 228113 is 311822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222784 + 5329 = 472^2 + 73^2 .

It is a cyclic number.

It is not a de Polignac number, because 228113 - 2⁴ = 228097 is a prime.

It is a super-4 number, since 4×228113⁴ (a number of 23 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228091 and 228100.

It is not a weakly prime, because it can be changed into another prime (228103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114056 + 114057.

It is an arithmetic number, because the mean of its divisors is an integer number (114057).

2²²⁸¹¹³ is an apocalyptic number.

It is an amenable number.

228113 is a deficient number, since it is larger than the sum of its proper divisors (1).

228113 is an equidigital number, since it uses as much as digits as its factorization.

228113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 17.

The square root of 228113 is about 477.6117670242. The cubic root of 228113 is about 61.1012383194.

Adding to 228113 its reverse (311822), we get a palindrome (539935).

The spelling of 228113 in words is "two hundred twenty-eight thousand, one hundred thirteen".