228144015 has 96 divisors (see below), whose sum is σ = 466352640. Its totient is φ = 102009600.

The previous prime is 228144013. The next prime is 228144017. The reversal of 228144015 is 510441822.

It is an interprime number because it is at equal distance from previous prime (228144013) and next prime (228144017).

It is not a de Polignac number, because 228144015 - 2¹ = 228144013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228144015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 329820 + ... + 330510.

It is an arithmetic number, because the mean of its divisors is an integer number (4857840).

Almost surely, 2^228144015 is an apocalyptic number.

228144015 is an abundant number, since it is smaller than the sum of its proper divisors (238208625).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228144015 is a wasteful number, since it uses less digits than its factorization.

228144015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 228144015 is about 15104.4369309154. The cubic root of 228144015 is about 611.0400736956.

Adding to 228144015 its reverse (510441822), we get a palindrome (738585837).

The spelling of 228144015 in words is "two hundred twenty-eight million, one hundred forty-four thousand, fifteen".