228143099 has 2 divisors, whose sum is σ = 228143100. Its totient is φ = 228143098.

The previous prime is 228143081. The next prime is 228143129. The reversal of 228143099 is 990341822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228143099 - 2⁸ = 228142843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228143039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114071549 + 114071550.

It is an arithmetic number, because the mean of its divisors is an integer number (114071550).

Almost surely, 2^228143099 is an apocalyptic number.

228143099 is a deficient number, since it is larger than the sum of its proper divisors (1).

228143099 is an equidigital number, since it uses as much as digits as its factorization.

228143099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 228143099 is about 15104.4066086689. The cubic root of 228143099 is about 611.0392559176.

The spelling of 228143099 in words is "two hundred twenty-eight million, one hundred forty-three thousand, ninety-nine".