1128958529 has 2 divisors, whose sum is σ = 1128958530. Its totient is φ = 1128958528.

The previous prime is 1128958517. The next prime is 1128958553. The reversal of 1128958529 is 9258598211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1090518529 + 38440000 = 33023^2 + 6200^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128958529 - 2⁴ = 1128958513 is a prime.

It is a super-3 number, since 3×1128958529³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1128958829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564479264 + 564479265.

It is an arithmetic number, because the mean of its divisors is an integer number (564479265).

Almost surely, 2^1128958529 is an apocalyptic number.

It is an amenable number.

1128958529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128958529 is an equidigital number, since it uses as much as digits as its factorization.

1128958529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 50.

The square root of 1128958529 is about 33599.9781101119. The cubic root of 1128958529 is about 1041.2603460813.

The spelling of 1128958529 in words is "one billion, one hundred twenty-eight million, nine hundred fifty-eight thousand, five hundred twenty-nine".