228583009 has 4 divisors (see below), whose sum is σ = 231802560. Its totient is φ = 225363460.

The previous prime is 228582971. The next prime is 228583021. The reversal of 228583009 is 900385822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228583009 - 2⁷ = 228582881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228583609) 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, 1609669 + ... + 1609810.

It is an arithmetic number, because the mean of its divisors is an integer number (57950640).

Almost surely, 2^228583009 is an apocalyptic number.

It is an amenable number.

228583009 is a deficient number, since it is larger than the sum of its proper divisors (3219551).

228583009 is an equidigital number, since it uses as much as digits as its factorization.

228583009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219550.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 228583009 is about 15118.9619021942. The cubic root of 228583009 is about 611.4317430527.

The spelling of 228583009 in words is "two hundred twenty-eight million, five hundred eighty-three thousand, nine".