228148 has 6 divisors (see below), whose sum is σ = 399266. Its totient is φ = 114072.

The previous prime is 228139. The next prime is 228181. The reversal of 228148 is 841822.

It can be written as a sum of positive squares in only one way, i.e., 142884 + 85264 = 378^2 + 292^2 .

It is a super-3 number, since 3×228148³ = 35626343644733376, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28515 + ... + 28522.

2²²⁸¹⁴⁸ is an apocalyptic number.

It is an amenable number.

228148 is a deficient number, since it is larger than the sum of its proper divisors (171118).

228148 is a wasteful number, since it uses less digits than its factorization.

228148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57041 (or 57039 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 228148 is about 477.6484062572. The cubic root of 228148 is about 61.1043631361.

It can be divided in two parts, 22814 and 8, that added together give a palindrome (22822).

The spelling of 228148 in words is "two hundred twenty-eight thousand, one hundred forty-eight".