228694111 has 2 divisors, whose sum is σ = 228694112. Its totient is φ = 228694110.

The previous prime is 228694079. The next prime is 228694117. The reversal of 228694111 is 111496822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228694111 - 2⁵ = 228694079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228694117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114347055 + 114347056.

It is an arithmetic number, because the mean of its divisors is an integer number (114347056).

Almost surely, 2^228694111 is an apocalyptic number.

228694111 is a deficient number, since it is larger than the sum of its proper divisors (1).

228694111 is an equidigital number, since it uses as much as digits as its factorization.

228694111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 34.

The square root of 228694111 is about 15122.6357160384. The cubic root of 228694111 is about 611.5307884525.

The spelling of 228694111 in words is "two hundred twenty-eight million, six hundred ninety-four thousand, one hundred eleven".