228652111 has 2 divisors, whose sum is σ = 228652112. Its totient is φ = 228652110.

The previous prime is 228652093. The next prime is 228652139. The reversal of 228652111 is 111256822.

It is an a-pointer prime, because the next prime (228652139) can be obtained adding 228652111 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228652111 - 2⁵ = 228652079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228652111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228652811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114326055 + 114326056.

It is an arithmetic number, because the mean of its divisors is an integer number (114326056).

Almost surely, 2^228652111 is an apocalyptic number.

228652111 is a deficient number, since it is larger than the sum of its proper divisors (1).

228652111 is an equidigital number, since it uses as much as digits as its factorization.

228652111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 28.

The square root of 228652111 is about 15121.2470054556. The cubic root of 228652111 is about 611.4933499931.

It can be divided in two parts, 22865 and 2111, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 228652111 in words is "two hundred twenty-eight million, six hundred fifty-two thousand, one hundred eleven".