228705201 has 10 divisors (see below), whose sum is σ = 341646162. Its totient is φ = 152470080.

The previous prime is 228705187. The next prime is 228705209. The reversal of 228705201 is 102507822.

228705201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 211266225 + 17438976 = 14535^2 + 4176^2 .

It is not a de Polignac number, because 228705201 - 2¹⁸ = 228443057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (228705209) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1411680 + ... + 1411841.

Almost surely, 2^228705201 is an apocalyptic number.

It is an amenable number.

228705201 is a deficient number, since it is larger than the sum of its proper divisors (112940961).

228705201 is an equidigital number, since it uses as much as digits as its factorization.

228705201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823533 (or 2823524 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 228705201 is about 15123.0023804799. The cubic root of 228705201 is about 611.5406732236.

The spelling of 228705201 in words is "two hundred twenty-eight million, seven hundred five thousand, two hundred one".