228118851 has 12 divisors (see below), whose sum is σ = 331718400. Its totient is φ = 151057680.

The previous prime is 228118829. The next prime is 228118873. The reversal of 228118851 is 158811822.

It is an interprime number because it is at equal distance from previous prime (228118829) and next prime (228118873).

It is not a de Polignac number, because 228118851 - 2⁵ = 228118819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228118651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83715 + ... + 86396.

It is an arithmetic number, because the mean of its divisors is an integer number (27643200).

Almost surely, 2^228118851 is an apocalyptic number.

228118851 is a deficient number, since it is larger than the sum of its proper divisors (103599549).

228118851 is a wasteful number, since it uses less digits than its factorization.

228118851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170266 (or 170263 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 228118851 is about 15103.6039076771. The cubic root of 228118851 is about 611.0176072171.

The spelling of 228118851 in words is "two hundred twenty-eight million, one hundred eighteen thousand, eight hundred fifty-one".