228133575 has 36 divisors (see below), whose sum is σ = 422714760. Its totient is φ = 117472320.

The previous prime is 228133559. The next prime is 228133583. The reversal of 228133575 is 575331822.

It is a happy number.

228133575 is a `hidden beast` number, since 2 + 2 + 81 + 3 + 3 + 575 = 666.

228133575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228133575 - 2⁴ = 228133559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10957 + ... + 24006.

Almost surely, 2^228133575 is an apocalyptic number.

228133575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228133575 is a deficient number, since it is larger than the sum of its proper divisors (194581185).

228133575 is a wasteful number, since it uses less digits than its factorization.

228133575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35008 (or 35000 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 228133575 is about 15104.0913331455. The cubic root of 228133575 is about 611.0307530395.

The spelling of 228133575 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, five hundred seventy-five".