228701109 has 32 divisors (see below), whose sum is σ = 377601280. Its totient is φ = 120609216.

The previous prime is 228701089. The next prime is 228701111. The reversal of 228701109 is 901107822.

It is not a de Polignac number, because 228701109 - 2¹⁶ = 228635573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228701159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43659 + ... + 48615.

It is an arithmetic number, because the mean of its divisors is an integer number (11800040).

Almost surely, 2^228701109 is an apocalyptic number.

It is an amenable number.

228701109 is a deficient number, since it is larger than the sum of its proper divisors (148900171).

228701109 is an equidigital number, since it uses as much as digits as its factorization.

228701109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 228701109 is about 15122.8670892791. The cubic root of 228701109 is about 611.5370259675.

The spelling of 228701109 in words is "two hundred twenty-eight million, seven hundred one thousand, one hundred nine".