1128824189 has 2 divisors, whose sum is σ = 1128824190. Its totient is φ = 1128824188.

The previous prime is 1128824131. The next prime is 1128824197. The reversal of 1128824189 is 9814288211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 921608164 + 207216025 = 30358^2 + 14395^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128824189 - 2⁸ = 1128823933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1128824119) 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, 564412094 + 564412095.

It is an arithmetic number, because the mean of its divisors is an integer number (564412095).

Almost surely, 2^1128824189 is an apocalyptic number.

It is an amenable number.

1128824189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128824189 is an equidigital number, since it uses as much as digits as its factorization.

1128824189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 44.

The square root of 1128824189 is about 33597.9789421923. The cubic root of 1128824189 is about 1041.2190429805.

The spelling of 1128824189 in words is "one billion, one hundred twenty-eight million, eight hundred twenty-four thousand, one hundred eighty-nine".