228133252 has 6 divisors (see below), whose sum is σ = 399233198. Its totient is φ = 114066624.

The previous prime is 228133223. The next prime is 228133267. The reversal of 228133252 is 252331822.

It can be written as a sum of positive squares in only one way, i.e., 227889216 + 244036 = 15096^2 + 494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 228133252.

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, 28516653 + ... + 28516660.

Almost surely, 2^228133252 is an apocalyptic number.

It is an amenable number.

228133252 is a deficient number, since it is larger than the sum of its proper divisors (171099946).

228133252 is a wasteful number, since it uses less digits than its factorization.

228133252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57033317 (or 57033315 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 228133252 is about 15104.0806406746. The cubic root of 228133252 is about 611.0304646660.

The spelling of 228133252 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, two hundred fifty-two".