228538653 has 16 divisors (see below), whose sum is σ = 348635136. Its totient is φ = 130448880.

The previous prime is 228538643. The next prime is 228538663. The reversal of 228538653 is 356835822.

It is an interprime number because it is at equal distance from previous prime (228538643) and next prime (228538663).

It is not a de Polignac number, because 228538653 - 2⁴ = 228538637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228538643) 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 15 ways as a sum of consecutive naturals, for example, 15108 + ... + 26178.

It is an arithmetic number, because the mean of its divisors is an integer number (21789696).

Almost surely, 2^228538653 is an apocalyptic number.

It is an amenable number.

228538653 is a deficient number, since it is larger than the sum of its proper divisors (120096483).

228538653 is a wasteful number, since it uses less digits than its factorization.

228538653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12064.

The product of its digits is 345600, while the sum is 42.

The square root of 228538653 is about 15117.4949313701. The cubic root of 228538653 is about 611.3921915262.

The spelling of 228538653 in words is "two hundred twenty-eight million, five hundred thirty-eight thousand, six hundred fifty-three".