228144055 has 4 divisors (see below), whose sum is σ = 273772872. Its totient is φ = 182515240.

The previous prime is 228144043. The next prime is 228144071. The reversal of 228144055 is 550441822.

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

It is not a de Polignac number, because 228144055 - 2⁵ = 228144023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22814401 + ... + 22814410.

It is an arithmetic number, because the mean of its divisors is an integer number (68443218).

Almost surely, 2^228144055 is an apocalyptic number.

228144055 is a deficient number, since it is larger than the sum of its proper divisors (45628817).

228144055 is an equidigital number, since it uses as much as digits as its factorization.

228144055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45628816.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 228144055 is about 15104.4382550295. The cubic root of 228144055 is about 611.0401094064.

Adding to 228144055 its reverse (550441822), we get a palindrome (778585877).

The spelling of 228144055 in words is "two hundred twenty-eight million, one hundred forty-four thousand, fifty-five".