228247173 has 64 divisors (see below), whose sum is σ = 426147840. Its totient is φ = 117288000.

The previous prime is 228247121. The next prime is 228247183. The reversal of 228247173 is 371742822.

228247173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228247173 - 2¹² = 228243077 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228247183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209436 + ... + 210522.

It is an arithmetic number, because the mean of its divisors is an integer number (6658560).

Almost surely, 2^228247173 is an apocalyptic number.

It is an amenable number.

228247173 is a deficient number, since it is larger than the sum of its proper divisors (197900667).

228247173 is a wasteful number, since it uses less digits than its factorization.

228247173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215 (or 1209 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 228247173 is about 15107.8513694039. The cubic root of 228247173 is about 611.1321561372.

Adding to 228247173 its reverse (371742822), we get a palindrome (599989995).

It can be divided in two parts, 2282 and 47173, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 228247173 in words is "two hundred twenty-eight million, two hundred forty-seven thousand, one hundred seventy-three".