1128873329 has 2 divisors, whose sum is σ = 1128873330. Its totient is φ = 1128873328.

The previous prime is 1128873323. The next prime is 1128873331. The reversal of 1128873329 is 9233788211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903122704 + 225750625 = 30052^2 + 15025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128873329 - 2⁴ = 1128873313 is a prime.

Together with 1128873331, 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 1128873329.

It is not a weakly prime, because it can be changed into another prime (1128873323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564436664 + 564436665.

It is an arithmetic number, because the mean of its divisors is an integer number (564436665).

Almost surely, 2^1128873329 is an apocalyptic number.

It is an amenable number.

1128873329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128873329 is an equidigital number, since it uses as much as digits as its factorization.

1128873329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 1128873329 is about 33598.7102282216. The cubic root of 1128873329 is about 1041.2341515515.

The spelling of 1128873329 in words is "one billion, one hundred twenty-eight million, eight hundred seventy-three thousand, three hundred twenty-nine".