228137171 has 16 divisors (see below), whose sum is σ = 240602400. Its totient is φ = 216023808.

The previous prime is 228137167. The next prime is 228137177. The reversal of 228137171 is 171731822.

228137171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 228137171 - 2² = 228137167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228137177) 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, 404936 + ... + 405498.

It is an arithmetic number, because the mean of its divisors is an integer number (15037650).

Almost surely, 2^228137171 is an apocalyptic number.

228137171 is a deficient number, since it is larger than the sum of its proper divisors (12465229).

228137171 is a wasteful number, since it uses less digits than its factorization.

228137171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its digits is 4704, while the sum is 32.

The square root of 228137171 is about 15104.2103732701. The cubic root of 228137171 is about 611.0339635198.

Adding to 228137171 its reverse (171731822), we get a palindrome (399868993).

The spelling of 228137171 in words is "two hundred twenty-eight million, one hundred thirty-seven thousand, one hundred seventy-one".