228652201 has 4 divisors (see below), whose sum is σ = 228690004. Its totient is φ = 228614400.

The previous prime is 228652189. The next prime is 228652309. The reversal of 228652201 is 102256822.

228652201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44235801 + 184416400 = 6651^2 + 13580^2 .

It is a 3-Lehmer number, since φ(228652201) divides (228652201-1)³.

It is a cyclic number.

It is not a de Polignac number, because 228652201 - 2¹⁷ = 228521129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228652201.

It is not an unprimeable number, because it can be changed into a prime (228655201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7560 + ... + 22681.

It is an arithmetic number, because the mean of its divisors is an integer number (57172501).

It is a Poulet number, since it divides 2^228652200-1.

Almost surely, 2^228652201 is an apocalyptic number.

228652201 is the 7561-st decagonal number.

It is an amenable number.

228652201 is a deficient number, since it is larger than the sum of its proper divisors (37803).

228652201 is an equidigital number, since it uses as much as digits as its factorization.

228652201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37802.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 228652201 is about 15121.2499814003. The cubic root of 228652201 is about 611.4934302233.

The spelling of 228652201 in words is "two hundred twenty-eight million, six hundred fifty-two thousand, two hundred one".