1147189369 has 2 divisors, whose sum is σ = 1147189370. Its totient is φ = 1147189368.

The previous prime is 1147189361. The next prime is 1147189409. The reversal of 1147189369 is 9639817411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044065344 + 103124025 = 32312^2 + 10155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147189369 - 2³ = 1147189361 is a prime.

It is a super-2 number, since 2×1147189369² = 2632086896693236322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1147189361) 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, 573594684 + 573594685.

It is an arithmetic number, because the mean of its divisors is an integer number (573594685).

Almost surely, 2^1147189369 is an apocalyptic number.

It is an amenable number.

1147189369 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147189369 is an equidigital number, since it uses as much as digits as its factorization.

1147189369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The square root of 1147189369 is about 33870.1840709495. The cubic root of 1147189369 is about 1046.8353297082.

The spelling of 1147189369 in words is "one billion, one hundred forty-seven million, one hundred eighty-nine thousand, three hundred sixty-nine".