228145027 has 32 divisors (see below), whose sum is σ = 282378240. Its totient is φ = 181764000.

The previous prime is 228145013. The next prime is 228145031. The reversal of 228145027 is 720541822.

It is a happy number.

It is not a de Polignac number, because 228145027 - 2⁷ = 228144899 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 228145027.

It is not an unprimeable number, because it can be changed into a prime (228145327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148252 + ... + 149782.

It is an arithmetic number, because the mean of its divisors is an integer number (8824320).

Almost surely, 2^228145027 is an apocalyptic number.

228145027 is a deficient number, since it is larger than the sum of its proper divisors (54233213).

228145027 is a wasteful number, since it uses less digits than its factorization.

228145027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 228145027 is about 15104.4704309684. The cubic root of 228145027 is about 611.0409771770.

Adding to 228145027 its reverse (720541822), we get a palindrome (948686849).

The spelling of 228145027 in words is "two hundred twenty-eight million, one hundred forty-five thousand, twenty-seven".