228171075 has 48 divisors (see below), whose sum is σ = 413652096. Its totient is φ = 110060800.

The previous prime is 228171061. The next prime is 228171077. The reversal of 228171075 is 570171822.

It is not a de Polignac number, because 228171075 - 2¹¹ = 228169027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (228171077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191632 + ... + 192818.

It is an arithmetic number, because the mean of its divisors is an integer number (8617752).

Almost surely, 2^228171075 is an apocalyptic number.

228171075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228171075 is a deficient number, since it is larger than the sum of its proper divisors (185481021).

228171075 is a wasteful number, since it uses less digits than its factorization.

228171075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 228171075 is about 15105.3326676376. The cubic root of 228171075 is about 611.0642310839.

The spelling of 228171075 in words is "two hundred twenty-eight million, one hundred seventy-one thousand, seventy-five".