228147975 has 48 divisors (see below), whose sum is σ = 457232640. Its totient is φ = 110613600.

The previous prime is 228147967. The next prime is 228148013. The reversal of 228147975 is 579741822.

It is a happy number.

It is not a de Polignac number, because 228147975 - 2³ = 228147967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 228147975.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 7939 + ... + 22788.

It is an arithmetic number, because the mean of its divisors is an integer number (9525680).

Almost surely, 2^228147975 is an apocalyptic number.

228147975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228147975 is an abundant number, since it is smaller than the sum of its proper divisors (229084665).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228147975 is a wasteful number, since it uses less digits than its factorization.

228147975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30757 (or 30746 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 228147975 is about 15104.5680176561. The cubic root of 228147975 is about 611.0436090425.

The spelling of 228147975 in words is "two hundred twenty-eight million, one hundred forty-seven thousand, nine hundred seventy-five".