228271523 has 2 divisors, whose sum is σ = 228271524. Its totient is φ = 228271522.

The previous prime is 228271513. The next prime is 228271541. The reversal of 228271523 is 325172822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228271523 - 2¹⁰ = 228270499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228271523.

It is not a weakly prime, because it can be changed into another prime (228271513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114135761 + 114135762.

It is an arithmetic number, because the mean of its divisors is an integer number (114135762).

Almost surely, 2^228271523 is an apocalyptic number.

228271523 is a deficient number, since it is larger than the sum of its proper divisors (1).

228271523 is an equidigital number, since it uses as much as digits as its factorization.

228271523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 228271523 is about 15108.6572202827. The cubic root of 228271523 is about 611.1538877519.

The spelling of 228271523 in words is "two hundred twenty-eight million, two hundred seventy-one thousand, five hundred twenty-three".