228135 has 16 divisors (see below), whose sum is σ = 372096. Its totient is φ = 119328.

The previous prime is 228131. The next prime is 228139. The reversal of 228135 is 531822.

228135 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (228131) and next prime (228139).

It is not a de Polignac number, because 228135 - 2² = 228131 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 892 + ... + 1118.

It is an arithmetic number, because the mean of its divisors is an integer number (23256).

2²²⁸¹³⁵ is an apocalyptic number.

228135 is a deficient number, since it is larger than the sum of its proper divisors (143961).

228135 is a wasteful number, since it uses less digits than its factorization.

228135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302.

The product of its digits is 480, while the sum is 21.

The square root of 228135 is about 477.6347977273. The cubic root of 228135 is about 61.1032025272.

Adding to 228135 its reverse (531822), we get a palindrome (759957).

It can be divided in two parts, 228 and 135, that added together give a palindrome (363).

The spelling of 228135 in words is "two hundred twenty-eight thousand, one hundred thirty-five".