1128086569 has 3 divisors (see below), whose sum is σ = 1128120157. Its totient is φ = 1128052982.

The previous prime is 1128086539. The next prime is 1128086579. The reversal of 1128086569 is 9656808211.

The square root of 1128086569 is 33587.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1128086569 - 2⁷ = 1128086441 is a prime.

It is a super-2 number, since 2×1128086569² = 2545158614316383522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128086539) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16794 + ... + 50380.

Almost surely, 2^1128086569 is an apocalyptic number.

1128086569 is the 33587-th square number.

1128086569 is the 16794-th centered octagonal number.

It is an amenable number.

1128086569 is a deficient number, since it is larger than the sum of its proper divisors (33588).

1128086569 is an frugal number, since it uses more digits than its factorization.

1128086569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67174 (or 33587 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The cubic root of 1128086569 is about 1040.9922018288.

The spelling of 1128086569 in words is "one billion, one hundred twenty-eight million, eighty-six thousand, five hundred sixty-nine".