228144512 has 16 divisors (see below), whose sum is σ = 454506900. Its totient is φ = 114072192.

The previous prime is 228144473. The next prime is 228144517. The reversal of 228144512 is 215441822.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891062 + ... + 891317.

Almost surely, 2^228144512 is an apocalyptic number.

It is an amenable number.

228144512 is a deficient number, since it is larger than the sum of its proper divisors (226362388).

228144512 is an equidigital number, since it uses as much as digits as its factorization.

228144512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782393 (or 1782381 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 228144512 is about 15104.4533830258. The cubic root of 228144512 is about 611.0405174017.

The spelling of 228144512 in words is "two hundred twenty-eight million, one hundred forty-four thousand, five hundred twelve".