228144615 has 16 divisors (see below), whose sum is σ = 367145568. Its totient is φ = 120972416.

The previous prime is 228144601. The next prime is 228144617. The reversal of 228144615 is 516441822.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 228144615 - 2⁸ = 228144359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144617) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41364 + ... + 46553.

It is an arithmetic number, because the mean of its divisors is an integer number (22946598).

Almost surely, 2^228144615 is an apocalyptic number.

228144615 is a deficient number, since it is larger than the sum of its proper divisors (139000953).

228144615 is a wasteful number, since it uses less digits than its factorization.

228144615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88098.

The product of its digits is 15360, while the sum is 33.

The square root of 228144615 is about 15104.4567926159. The cubic root of 228144615 is about 611.0406093568.

The spelling of 228144615 in words is "two hundred twenty-eight million, one hundred forty-four thousand, six hundred fifteen".