228705101 has 2 divisors, whose sum is σ = 228705102. Its totient is φ = 228705100.

The previous prime is 228705083. The next prime is 228705121. The reversal of 228705101 is 101507822.

228705101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123232201 + 105472900 = 11101^2 + 10270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228705101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228705121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114352550 + 114352551.

It is an arithmetic number, because the mean of its divisors is an integer number (114352551).

Almost surely, 2^228705101 is an apocalyptic number.

It is an amenable number.

228705101 is a deficient number, since it is larger than the sum of its proper divisors (1).

228705101 is an equidigital number, since it uses as much as digits as its factorization.

228705101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 228705101 is about 15122.9990742577. Note that the first 3 decimals coincide. The cubic root of 228705101 is about 611.5405840928.

The spelling of 228705101 in words is "two hundred twenty-eight million, seven hundred five thousand, one hundred one".