1118833553 has 2 divisors, whose sum is σ = 1118833554. Its totient is φ = 1118833552.

The previous prime is 1118833523. The next prime is 1118833559. The reversal of 1118833553 is 3553388111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982947904 + 135885649 = 31352^2 + 11657^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118833553 - 2¹⁴ = 1118817169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118833559) 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, 559416776 + 559416777.

It is an arithmetic number, because the mean of its divisors is an integer number (559416777).

Almost surely, 2^1118833553 is an apocalyptic number.

It is an amenable number.

1118833553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118833553 is an equidigital number, since it uses as much as digits as its factorization.

1118833553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The square root of 1118833553 is about 33448.9693862158. The cubic root of 1118833553 is about 1038.1381731658.

The spelling of 1118833553 in words is "one billion, one hundred eighteen million, eight hundred thirty-three thousand, five hundred fifty-three".