1133611553 has 2 divisors, whose sum is σ = 1133611554. Its totient is φ = 1133611552.

The previous prime is 1133611487. The next prime is 1133611571. The reversal of 1133611553 is 3551163311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106028049 + 27583504 = 33257^2 + 5252^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133611553 - 2¹⁶ = 1133546017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1133613553) 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 as a sum of consecutive naturals, namely, 566805776 + 566805777.

It is an arithmetic number, because the mean of its divisors is an integer number (566805777).

Almost surely, 2^1133611553 is an apocalyptic number.

It is an amenable number.

1133611553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133611553 is an equidigital number, since it uses as much as digits as its factorization.

1133611553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 29.

The square root of 1133611553 is about 33669.1483854285. The cubic root of 1133611553 is about 1042.6889100157.

Adding to 1133611553 its reverse (3551163311), we get a palindrome (4684774864).

The spelling of 1133611553 in words is "one billion, one hundred thirty-three million, six hundred eleven thousand, five hundred fifty-three".