228141 has 6 divisors (see below), whose sum is σ = 329550. Its totient is φ = 152088.
The previous prime is 228139. The next prime is 228181. The reversal of 228141 is 141822.
It can be written as a sum of positive squares in only one way, i.e., 184041 + 44100 = 429^2 + 210^2 .
It is not a de Polignac number, because 228141 - 21 = 228139 is a prime.
It is a Curzon number.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228141.
It is not an unprimeable number, because it can be changed into a prime (228131) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12666 + ... + 12683.
It is an arithmetic number, because the mean of its divisors is an integer number (54925).
2228141 is an apocalyptic number.
It is an amenable number.
228141 is a deficient number, since it is larger than the sum of its proper divisors (101409).
228141 is a wasteful number, since it uses less digits than its factorization.
228141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25355 (or 25352 counting only the distinct ones).
The product of its digits is 128, while the sum is 18.
The square root of 228141 is about 477.6410786354. The cubic root of 228141 is about 61.1037381984.
Adding to 228141 its reverse (141822), we get a palindrome (369963).
The spelling of 228141 in words is "two hundred twenty-eight thousand, one hundred forty-one".
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