1132271989 has 2 divisors, whose sum is σ = 1132271990. Its totient is φ = 1132271988.

The previous prime is 1132271977. The next prime is 1132272013. The reversal of 1132271989 is 9891722311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012194225 + 120077764 = 31815^2 + 10958^2 .

It is an emirp because it is prime and its reverse (9891722311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1132271989 - 2⁵ = 1132271957 is a prime.

It is a super-2 number, since 2×1132271989² = 2564079714148032242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1132271939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566135994 + 566135995.

It is an arithmetic number, because the mean of its divisors is an integer number (566135995).

Almost surely, 2^1132271989 is an apocalyptic number.

It is an amenable number.

1132271989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1132271989 is an equidigital number, since it uses as much as digits as its factorization.

1132271989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 1132271989 is about 33649.2494567115. The cubic root of 1132271989 is about 1042.2780405681.

The spelling of 1132271989 in words is "one billion, one hundred thirty-two million, two hundred seventy-one thousand, nine hundred eighty-nine".