228787199 has 2 divisors, whose sum is σ = 228787200. Its totient is φ = 228787198.

The previous prime is 228787157. The next prime is 228787201. The reversal of 228787199 is 991787822.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228787199 - 2¹² = 228783103 is a prime.

Together with 228787201, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228787199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228787799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114393599 + 114393600.

It is an arithmetic number, because the mean of its divisors is an integer number (114393600).

Almost surely, 2^228787199 is an apocalyptic number.

228787199 is a deficient number, since it is larger than the sum of its proper divisors (1).

228787199 is an equidigital number, since it uses as much as digits as its factorization.

228787199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 53.

The square root of 228787199 is about 15125.7131732689. The cubic root of 228787199 is about 611.6137500058.

The spelling of 228787199 in words is "two hundred twenty-eight million, seven hundred eighty-seven thousand, one hundred ninety-nine".