228575013 has 24 divisors (see below), whose sum is σ = 334949280. Its totient is φ = 138458880.

The previous prime is 228575003. The next prime is 228575021. The reversal of 228575013 is 310575822.

It is not a de Polignac number, because 228575013 - 2⁸ = 228574757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228575003) 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 23 ways as a sum of consecutive naturals, for example, 20598 + ... + 29688.

It is an arithmetic number, because the mean of its divisors is an integer number (13956220).

Almost surely, 2^228575013 is an apocalyptic number.

It is an amenable number.

228575013 is a deficient number, since it is larger than the sum of its proper divisors (106374267).

228575013 is a wasteful number, since it uses less digits than its factorization.

228575013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9157 (or 9140 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 228575013 is about 15118.6974637367. The cubic root of 228575013 is about 611.4246135271.

The spelling of 228575013 in words is "two hundred twenty-eight million, five hundred seventy-five thousand, thirteen".