228106205 has 4 divisors (see below), whose sum is σ = 273727452. Its totient is φ = 182484960.

The previous prime is 228106189. The next prime is 228106211. The reversal of 228106205 is 502601822.

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 50310649 + 177795556 = 7093^2 + 13334^2 .

It is not a de Polignac number, because 228106205 - 2⁴ = 228106189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22810616 + ... + 22810625.

It is an arithmetic number, because the mean of its divisors is an integer number (68431863).

Almost surely, 2^228106205 is an apocalyptic number.

It is an amenable number.

228106205 is a deficient number, since it is larger than the sum of its proper divisors (45621247).

228106205 is an equidigital number, since it uses as much as digits as its factorization.

228106205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45621246.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 228106205 is about 15103.1852600701. The cubic root of 228106205 is about 611.0063162148.

The spelling of 228106205 in words is "two hundred twenty-eight million, one hundred six thousand, two hundred five".