228336109 has 2 divisors, whose sum is σ = 228336110. Its totient is φ = 228336108.

The previous prime is 228336103. The next prime is 228336131. The reversal of 228336109 is 901633822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227346084 + 990025 = 15078^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 228336109 - 2⁷ = 228335981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228336103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114168054 + 114168055.

It is an arithmetic number, because the mean of its divisors is an integer number (114168055).

Almost surely, 2^228336109 is an apocalyptic number.

It is an amenable number.

228336109 is a deficient number, since it is larger than the sum of its proper divisors (1).

228336109 is an equidigital number, since it uses as much as digits as its factorization.

228336109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 228336109 is about 15110.7944529730. The cubic root of 228336109 is about 611.2115212555.

The spelling of 228336109 in words is "two hundred twenty-eight million, three hundred thirty-six thousand, one hundred nine".