228270123 has 16 divisors (see below), whose sum is σ = 355977600. Its totient is φ = 144170280.

The previous prime is 228270103. The next prime is 228270167. The reversal of 228270123 is 321072822.

It is a happy number.

It is not a de Polignac number, because 228270123 - 2⁶ = 228270059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (228270103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221973 + ... + 222998.

It is an arithmetic number, because the mean of its divisors is an integer number (22248600).

Almost surely, 2^228270123 is an apocalyptic number.

228270123 is a deficient number, since it is larger than the sum of its proper divisors (127707477).

228270123 is a wasteful number, since it uses less digits than its factorization.

228270123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444999 (or 444993 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 228270123 is about 15108.6108891585. The cubic root of 228270123 is about 611.1526383375.

The spelling of 228270123 in words is "two hundred twenty-eight million, two hundred seventy thousand, one hundred twenty-three".