1128577633 has 4 divisors (see below), whose sum is σ = 1130456068. Its totient is φ = 1126699200.

The previous prime is 1128577627. The next prime is 1128577649. The reversal of 1128577633 is 3367758211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3367758211 = 61 ⋅55209151.

It can be written as a sum of positive squares in 2 ways, for example, as 629859409 + 498718224 = 25097^2 + 22332^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128577633 - 2¹³ = 1128569441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128577633.

It is not an unprimeable number, because it can be changed into a prime (1128577033) 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 in 3 ways as a sum of consecutive naturals, for example, 938316 + ... + 939517.

It is an arithmetic number, because the mean of its divisors is an integer number (282614017).

Almost surely, 2^1128577633 is an apocalyptic number.

It is an amenable number.

1128577633 is a deficient number, since it is larger than the sum of its proper divisors (1878435).

1128577633 is an equidigital number, since it uses as much as digits as its factorization.

1128577633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878434.

The product of its digits is 211680, while the sum is 43.

The square root of 1128577633 is about 33594.3095330147. The cubic root of 1128577633 is about 1041.1432303199.

The spelling of 1128577633 in words is "one billion, one hundred twenty-eight million, five hundred seventy-seven thousand, six hundred thirty-three".