228132019 has 2 divisors, whose sum is σ = 228132020. Its totient is φ = 228132018.

The previous prime is 228132011. The next prime is 228132041. The reversal of 228132019 is 910231822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228132019 - 2³ = 228132011 is a prime.

It is a super-2 number, since 2×228132019² = 104088436186032722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (228132011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114066009 + 114066010.

It is an arithmetic number, because the mean of its divisors is an integer number (114066010).

Almost surely, 2^228132019 is an apocalyptic number.

228132019 is a deficient number, since it is larger than the sum of its proper divisors (1).

228132019 is an equidigital number, since it uses as much as digits as its factorization.

228132019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 228132019 is about 15104.0398238352. The cubic root of 228132019 is about 611.0293638446.

The spelling of 228132019 in words is "two hundred twenty-eight million, one hundred thirty-two thousand, nineteen".