228607201 has 12 divisors (see below), whose sum is σ = 239973268. Its totient is φ = 217618272.

The previous prime is 228607193. The next prime is 228607213. The reversal of 228607201 is 102706822.

It can be written as a sum of positive squares in 2 ways, for example, as 188348176 + 40259025 = 13724^2 + 6345^2 .

It is not a de Polignac number, because 228607201 - 2³ = 228607193 is a prime.

It is a super-2 number, since 2×228607201² = 104522504698108802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228607201.

It is not an unprimeable number, because it can be changed into a prime (228607231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80335 + ... + 83131.

Almost surely, 2^228607201 is an apocalyptic number.

It is an amenable number.

228607201 is a deficient number, since it is larger than the sum of its proper divisors (11366067).

228607201 is an equidigital number, since it uses as much as digits as its factorization.

228607201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928 (or 2881 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 228607201 is about 15119.7619359565. The cubic root of 228607201 is about 611.4533125108.

The spelling of 228607201 in words is "two hundred twenty-eight million, six hundred seven thousand, two hundred one".