228112185 has 16 divisors (see below), whose sum is σ = 417119616. Its totient is φ = 104279808.

The previous prime is 228112177. The next prime is 228112187. The reversal of 228112185 is 581211822.

It is not a de Polignac number, because 228112185 - 2³ = 228112177 is a prime.

It is a super-4 number, since 4×228112185⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (228112187) 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, 1086144 + ... + 1086353.

It is an arithmetic number, because the mean of its divisors is an integer number (26069976).

Almost surely, 2^228112185 is an apocalyptic number.

It is an amenable number.

228112185 is a deficient number, since it is larger than the sum of its proper divisors (189007431).

228112185 is a wasteful number, since it uses less digits than its factorization.

228112185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172512.

The product of its digits is 2560, while the sum is 30.

The square root of 228112185 is about 15103.3832302567. The cubic root of 228112185 is about 611.0116555199.

The spelling of 228112185 in words is "two hundred twenty-eight million, one hundred twelve thousand, one hundred eighty-five".