228975361 has 8 divisors (see below), whose sum is σ = 232003944. Its totient is φ = 225966720.

The previous prime is 228975359. The next prime is 228975367. The reversal of 228975361 is 163579822.

It can be written as a sum of positive squares in 4 ways, for example, as 18870336 + 210105025 = 4344^2 + 14495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228975361 - 2¹ = 228975359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228975367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18871 + ... + 28531.

It is an arithmetic number, because the mean of its divisors is an integer number (29000493).

Almost surely, 2^228975361 is an apocalyptic number.

It is an amenable number.

228975361 is a deficient number, since it is larger than the sum of its proper divisors (3028583).

228975361 is a wasteful number, since it uses less digits than its factorization.

228975361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971.

The product of its digits is 181440, while the sum is 43.

The square root of 228975361 is about 15131.9318330476. The cubic root of 228975361 is about 611.7813743778.

The spelling of 228975361 in words is "two hundred twenty-eight million, nine hundred seventy-five thousand, three hundred sixty-one".