228315009 has 16 divisors (see below), whose sum is σ = 333214784. Its totient is φ = 138196800.

The previous prime is 228315007. The next prime is 228315041. The reversal of 228315009 is 900513822.

It is a happy number.

It is not a de Polignac number, because 228315009 - 2¹ = 228315007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228315007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45607 + ... + 50364.

It is an arithmetic number, because the mean of its divisors is an integer number (20825924).

Almost surely, 2^228315009 is an apocalyptic number.

It is an amenable number.

228315009 is a deficient number, since it is larger than the sum of its proper divisors (104899775).

228315009 is a wasteful number, since it uses less digits than its factorization.

228315009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96048.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 228315009 is about 15110.0962604478. The cubic root of 228315009 is about 611.1926938050.

The spelling of 228315009 in words is "two hundred twenty-eight million, three hundred fifteen thousand, nine".