228135166 has 32 divisors (see below), whose sum is σ = 412992000. Its totient is φ = 92329632.

The previous prime is 228135157. The next prime is 228135191. The reversal of 228135166 is 661531822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94300 + ... + 96688.

It is an arithmetic number, because the mean of its divisors is an integer number (12906000).

Almost surely, 2^228135166 is an apocalyptic number.

228135166 is a deficient number, since it is larger than the sum of its proper divisors (184856834).

228135166 is a wasteful number, since it uses less digits than its factorization.

228135166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776.

The product of its digits is 17280, while the sum is 34.

The square root of 228135166 is about 15104.1440009025. The cubic root of 228135166 is about 611.0321734759.

Adding to 228135166 its reverse (661531822), we get a palindrome (889666988).

The spelling of 228135166 in words is "two hundred twenty-eight million, one hundred thirty-five thousand, one hundred sixty-six".