228115799 has 2 divisors, whose sum is σ = 228115800. Its totient is φ = 228115798.

The previous prime is 228115781. The next prime is 228115807. The reversal of 228115799 is 997511822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228115799 - 2⁸ = 228115543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228115709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114057899 + 114057900.

It is an arithmetic number, because the mean of its divisors is an integer number (114057900).

Almost surely, 2^228115799 is an apocalyptic number.

228115799 is a deficient number, since it is larger than the sum of its proper divisors (1).

228115799 is an equidigital number, since it uses as much as digits as its factorization.

228115799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 44.

The square root of 228115799 is about 15103.5028718506. The cubic root of 228115799 is about 611.0148822720.

The spelling of 228115799 in words is "two hundred twenty-eight million, one hundred fifteen thousand, seven hundred ninety-nine".