228124285 has 4 divisors (see below), whose sum is σ = 273749148. Its totient is φ = 182499424.

The previous prime is 228124283. The next prime is 228124291. The reversal of 228124285 is 582421822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44169316 + 183954969 = 6646^2 + 13563^2 .

It is a cyclic number.

It is not a de Polignac number, because 228124285 - 2¹ = 228124283 is a prime.

It is a super-2 number, since 2×228124285² = 104081378813522450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228124285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228124283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22812424 + ... + 22812433.

It is an arithmetic number, because the mean of its divisors is an integer number (68437287).

Almost surely, 2^228124285 is an apocalyptic number.

It is an amenable number.

228124285 is a deficient number, since it is larger than the sum of its proper divisors (45624863).

228124285 is an equidigital number, since it uses as much as digits as its factorization.

228124285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45624862.

The product of its digits is 20480, while the sum is 34.

The square root of 228124285 is about 15103.7837974463. The cubic root of 228124285 is about 611.0224588450.

The spelling of 228124285 in words is "two hundred twenty-eight million, one hundred twenty-four thousand, two hundred eighty-five".