228214297 has 4 divisors (see below), whose sum is σ = 228444196. Its totient is φ = 227984400.

The previous prime is 228214291. The next prime is 228214333. The reversal of 228214297 is 792412822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204604416 + 23609881 = 14304^2 + 4859^2 .

It is a cyclic number.

It is not a de Polignac number, because 228214297 - 2¹⁵ = 228181529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228214291) 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 3 ways as a sum of consecutive naturals, for example, 113454 + ... + 115447.

It is an arithmetic number, because the mean of its divisors is an integer number (57111049).

Almost surely, 2^228214297 is an apocalyptic number.

It is an amenable number.

228214297 is a deficient number, since it is larger than the sum of its proper divisors (229899).

228214297 is an equidigital number, since it uses as much as digits as its factorization.

228214297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229898.

The product of its digits is 32256, while the sum is 37.

The square root of 228214297 is about 15106.7632866872. The cubic root of 228214297 is about 611.1028128815.

The spelling of 228214297 in words is "two hundred twenty-eight million, two hundred fourteen thousand, two hundred ninety-seven".