228743253 has 12 divisors (see below), whose sum is σ = 330679648. Its totient is φ = 152369640.

The previous prime is 228743243. The next prime is 228743267. The reversal of 228743253 is 352347822.

It is not a de Polignac number, because 228743253 - 2¹⁰ = 228742229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228743233) 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 11 ways as a sum of consecutive naturals, for example, 1776 + ... + 21462.

Almost surely, 2^228743253 is an apocalyptic number.

It is an amenable number.

228743253 is a deficient number, since it is larger than the sum of its proper divisors (101936395).

228743253 is a wasteful number, since it uses less digits than its factorization.

228743253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984 (or 20981 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 228743253 is about 15124.2604116697. The cubic root of 228743253 is about 611.5745874141.

The spelling of 228743253 in words is "two hundred twenty-eight million, seven hundred forty-three thousand, two hundred fifty-three".