228144166 has 4 divisors (see below), whose sum is σ = 342216252. Its totient is φ = 114072082.

The previous prime is 228144151. The next prime is 228144173. The reversal of 228144166 is 661441822.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57036040 + ... + 57036043.

It is an arithmetic number, because the mean of its divisors is an integer number (85554063).

Almost surely, 2^228144166 is an apocalyptic number.

228144166 is a deficient number, since it is larger than the sum of its proper divisors (114072086).

228144166 is a wasteful number, since it uses less digits than its factorization.

228144166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114072085.

The product of its digits is 18432, while the sum is 34.

The square root of 228144166 is about 15104.4419294458. The cubic root of 228144166 is about 611.0402085037.

Adding to 228144166 its reverse (661441822), we get a palindrome (889585988).

The spelling of 228144166 in words is "two hundred twenty-eight million, one hundred forty-four thousand, one hundred sixty-six".