228825187 has 16 divisors (see below), whose sum is σ = 239500800. Its totient is φ = 218455840.

The previous prime is 228825169. The next prime is 228825199. The reversal of 228825187 is 781528822.

228825187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 228825187 - 2¹⁵ = 228792419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228825127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496137 + ... + 496597.

It is an arithmetic number, because the mean of its divisors is an integer number (14968800).

Almost surely, 2^228825187 is an apocalyptic number.

228825187 is a deficient number, since it is larger than the sum of its proper divisors (10675613).

228825187 is a wasteful number, since it uses less digits than its factorization.

228825187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its digits is 143360, while the sum is 43.

The square root of 228825187 is about 15126.9688635893. The cubic root of 228825187 is about 611.6475990694.

The spelling of 228825187 in words is "two hundred twenty-eight million, eight hundred twenty-five thousand, one hundred eighty-seven".