228123865 has 8 divisors (see below), whose sum is σ = 275279040. Its totient is φ = 181478832.

The previous prime is 228123859. The next prime is 228123869. The reversal of 228123865 is 568321822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228123865 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228123869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126549 + ... + 128338.

It is an arithmetic number, because the mean of its divisors is an integer number (34409880).

Almost surely, 2^228123865 is an apocalyptic number.

It is an amenable number.

228123865 is a deficient number, since it is larger than the sum of its proper divisors (47155175).

228123865 is a wasteful number, since it uses less digits than its factorization.

228123865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255071.

The product of its digits is 46080, while the sum is 37.

The square root of 228123865 is about 15103.7698936391. The cubic root of 228123865 is about 611.0220838599.

The spelling of 228123865 in words is "two hundred twenty-eight million, one hundred twenty-three thousand, eight hundred sixty-five".