228141522 has 48 divisors (see below), whose sum is σ = 585853632. Its totient is φ = 65182320.

The previous prime is 228141517. The next prime is 228141523. The reversal of 228141522 is 225141822.

228141522 is a `hidden beast` number, since 22 + 81 + 41 + 522 = 666.

228141522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (228141523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30129 + ... + 36932.

It is an arithmetic number, because the mean of its divisors is an integer number (12205284).

Almost surely, 2^228141522 is an apocalyptic number.

228141522 is an abundant number, since it is smaller than the sum of its proper divisors (357712110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228141522 is an equidigital number, since it uses as much as digits as its factorization.

228141522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67085 (or 67073 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 228141522 is about 15104.3544052700. The cubic root of 228141522 is about 611.0378480130.

It can be divided in two parts, 22814 and 1522, that added together give a square (24336 = 156²).

The spelling of 228141522 in words is "two hundred twenty-eight million, one hundred forty-one thousand, five hundred twenty-two".