1128508564 has 6 divisors (see below), whose sum is σ = 1974889994. Its totient is φ = 564254280.

The previous prime is 1128508561. The next prime is 1128508571. The reversal of 1128508564 is 4658058211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 847275664 + 281232900 = 29108^2 + 16770^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128508561) 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, 141063567 + ... + 141063574.

Almost surely, 2^1128508564 is an apocalyptic number.

It is an amenable number.

1128508564 is a deficient number, since it is larger than the sum of its proper divisors (846381430).

1128508564 is a wasteful number, since it uses less digits than its factorization.

1128508564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282127145 (or 282127143 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 1128508564 is about 33593.2815306871. The cubic root of 1128508564 is about 1041.1219905497.

The spelling of 1128508564 in words is "one billion, one hundred twenty-eight million, five hundred eight thousand, five hundred sixty-four".