228543 has 8 divisors (see below), whose sum is σ = 348288. Its totient is φ = 130584.

The previous prime is 228539. The next prime is 228559. The reversal of 228543 is 345822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228543 - 2² = 228539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5421 + ... + 5462.

It is an arithmetic number, because the mean of its divisors is an integer number (43536).

2²²⁸⁵⁴³ is an apocalyptic number.

228543 is a deficient number, since it is larger than the sum of its proper divisors (119745).

228543 is a wasteful number, since it uses less digits than its factorization.

228543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10893.

The product of its digits is 1920, while the sum is 24.

The square root of 228543 is about 478.0617114976. The cubic root of 228543 is about 61.1396067902.

The spelling of 228543 in words is "two hundred twenty-eight thousand, five hundred forty-three".