1133530565 has 16 divisors (see below), whose sum is σ = 1372363776. Its totient is φ = 898776000.

The previous prime is 1133530561. The next prime is 1133530571. The reversal of 1133530565 is 5650353311.

It is not a de Polignac number, because 1133530565 - 2² = 1133530561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133530561) 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 15 ways as a sum of consecutive naturals, for example, 277790 + ... + 281840.

It is an arithmetic number, because the mean of its divisors is an integer number (85772736).

Almost surely, 2^1133530565 is an apocalyptic number.

It is an amenable number.

1133530565 is a deficient number, since it is larger than the sum of its proper divisors (238833211).

1133530565 is a wasteful number, since it uses less digits than its factorization.

1133530565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540.

The product of its (nonzero) digits is 20250, while the sum is 32.

The square root of 1133530565 is about 33667.9456605240. The cubic root of 1133530565 is about 1042.6640786701.

Adding to 1133530565 its reverse (5650353311), we get a palindrome (6783883876).

The spelling of 1133530565 in words is "one billion, one hundred thirty-three million, five hundred thirty thousand, five hundred sixty-five".