1128301289 has 8 divisors (see below), whose sum is σ = 1167789960. Its totient is φ = 1088851456.

The previous prime is 1128301283. The next prime is 1128301337. The reversal of 1128301289 is 9821038211.

It can be written as a sum of positive squares in 4 ways, for example, as 70425664 + 1057875625 = 8392^2 + 32525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1128301289 - 2¹² = 1128297193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128301283) 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 in 7 ways as a sum of consecutive naturals, for example, 57359 + ... + 74475.

It is an arithmetic number, because the mean of its divisors is an integer number (145973745).

Almost surely, 2^1128301289 is an apocalyptic number.

It is an amenable number.

1128301289 is a deficient number, since it is larger than the sum of its proper divisors (39488671).

1128301289 is a wasteful number, since it uses less digits than its factorization.

1128301289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19419.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1128301289 is about 33590.1963227368. The cubic root of 1128301289 is about 1041.0582451247.

The spelling of 1128301289 in words is "one billion, one hundred twenty-eight million, three hundred one thousand, two hundred eighty-nine".