228145345 has 8 divisors (see below), whose sum is σ = 275304960. Its totient is φ = 181495920.

The previous prime is 228145339. The next prime is 228145381. The reversal of 228145345 is 543541822.

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

It is not a de Polignac number, because 228145345 - 2¹¹ = 228143297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228145345.

It is an unprimeable number.

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, 126561 + ... + 128350.

It is an arithmetic number, because the mean of its divisors is an integer number (34413120).

Almost surely, 2^228145345 is an apocalyptic number.

It is an amenable number.

228145345 is a deficient number, since it is larger than the sum of its proper divisors (47159615).

228145345 is a wasteful number, since it uses less digits than its factorization.

228145345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255095.

The product of its digits is 38400, while the sum is 34.

The square root of 228145345 is about 15104.4809576496. The cubic root of 228145345 is about 611.0412610767.

The spelling of 228145345 in words is "two hundred twenty-eight million, one hundred forty-five thousand, three hundred forty-five".