1133331989 has 2 divisors, whose sum is σ = 1133331990. Its totient is φ = 1133331988.

The previous prime is 1133331967. The next prime is 1133332051. The reversal of 1133331989 is 9891333311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 984076900 + 149255089 = 31370^2 + 12217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133331989 - 2²⁴ = 1116554773 is a prime.

It is a super-2 number, since 2×1133331989² = 2568882794581392242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133331289) 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 as a sum of consecutive naturals, namely, 566665994 + 566665995.

It is an arithmetic number, because the mean of its divisors is an integer number (566665995).

Almost surely, 2^1133331989 is an apocalyptic number.

It is an amenable number.

1133331989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133331989 is an equidigital number, since it uses as much as digits as its factorization.

1133331989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 1133331989 is about 33664.9964948758. The cubic root of 1133331989 is about 1042.6031892214.

The spelling of 1133331989 in words is "one billion, one hundred thirty-three million, three hundred thirty-one thousand, nine hundred eighty-nine".