228055999 has 2 divisors, whose sum is σ = 228056000. Its totient is φ = 228055998.

The previous prime is 228055991. The next prime is 228056009. The reversal of 228055999 is 999550822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228055999 - 2³ = 228055991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228055991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114027999 + 114028000.

It is an arithmetic number, because the mean of its divisors is an integer number (114028000).

Almost surely, 2^228055999 is an apocalyptic number.

228055999 is a deficient number, since it is larger than the sum of its proper divisors (1).

228055999 is an equidigital number, since it uses as much as digits as its factorization.

228055999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 49.

The square root of 228055999 is about 15101.5230688828. The cubic root of 228055999 is about 610.9614855857.

The spelling of 228055999 in words is "two hundred twenty-eight million, fifty-five thousand, nine hundred ninety-nine".