228912203 has 4 divisors (see below), whose sum is σ = 246520848. Its totient is φ = 211303560.

The previous prime is 228912179. The next prime is 228912239. The reversal of 228912203 is 302219822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302219822 = 2 ⋅151109911.

It is not a de Polignac number, because 228912203 - 2¹⁴ = 228895819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228917203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8804303 + ... + 8804328.

It is an arithmetic number, because the mean of its divisors is an integer number (61630212).

Almost surely, 2^228912203 is an apocalyptic number.

228912203 is a deficient number, since it is larger than the sum of its proper divisors (17608645).

228912203 is a wasteful number, since it uses less digits than its factorization.

228912203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17608644.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 228912203 is about 15129.8447777894. The cubic root of 228912203 is about 611.7251202303.

The spelling of 228912203 in words is "two hundred twenty-eight million, nine hundred twelve thousand, two hundred three".