228645259 has 6 divisors (see below), whose sum is σ = 240748620. Its totient is φ = 216548856.

The previous prime is 228645239. The next prime is 228645269. The reversal of 228645259 is 952546822.

228645259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228645259 - 2⁵ = 228645227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228645239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64177 + ... + 67645.

It is an arithmetic number, because the mean of its divisors is an integer number (40124770).

Almost surely, 2^228645259 is an apocalyptic number.

228645259 is a deficient number, since it is larger than the sum of its proper divisors (12103361).

228645259 is an frugal number, since it uses more digits than its factorization.

228645259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957 (or 3488 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 228645259 is about 15121.0204351426. The cubic root of 228645259 is about 611.4872417409.

The spelling of 228645259 in words is "two hundred twenty-eight million, six hundred forty-five thousand, two hundred fifty-nine".