228142303 has 4 divisors (see below), whose sum is σ = 231547480. Its totient is φ = 224737128.

The previous prime is 228142279. The next prime is 228142319. The reversal of 228142303 is 303241822.

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

It is a cyclic number.

It is not a de Polignac number, because 228142303 - 2⁹ = 228141791 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 (228142003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702488 + ... + 1702621.

It is an arithmetic number, because the mean of its divisors is an integer number (57886870).

Almost surely, 2^228142303 is an apocalyptic number.

228142303 is a deficient number, since it is larger than the sum of its proper divisors (3405177).

228142303 is an equidigital number, since it uses as much as digits as its factorization.

228142303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405176.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 228142303 is about 15104.3802587197. The cubic root of 228142303 is about 611.0385452703.

The spelling of 228142303 in words is "two hundred twenty-eight million, one hundred forty-two thousand, three hundred three".