1045196489 has 2 divisors, whose sum is σ = 1045196490. Its totient is φ = 1045196488.

The previous prime is 1045196483. The next prime is 1045196491. The reversal of 1045196489 is 9846915401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012512400 + 32684089 = 31820^2 + 5717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045196489 is a prime.

It is a Sophie Germain prime.

Together with 1045196491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1045196483) 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, 522598244 + 522598245.

It is an arithmetic number, because the mean of its divisors is an integer number (522598245).

Almost surely, 2^1045196489 is an apocalyptic number.

It is an amenable number.

1045196489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045196489 is an equidigital number, since it uses as much as digits as its factorization.

1045196489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1045196489 is about 32329.4987434077. The cubic root of 1045196489 is about 1014.8440599408.

The spelling of 1045196489 in words is "one billion, forty-five million, one hundred ninety-six thousand, four hundred eighty-nine".