1563140009 has 2 divisors, whose sum is σ = 1563140010. Its totient is φ = 1563140008.

The previous prime is 1563139967. The next prime is 1563140011. The reversal of 1563140009 is 9000413651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1499857984 + 63282025 = 38728^2 + 7955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1563140009 - 2¹⁶ = 1563074473 is a prime.

It is a Sophie Germain prime.

Together with 1563140011, 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 (1563140309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781570004 + 781570005.

It is an arithmetic number, because the mean of its divisors is an integer number (781570005).

Almost surely, 2^1563140009 is an apocalyptic number.

It is an amenable number.

1563140009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563140009 is an equidigital number, since it uses as much as digits as its factorization.

1563140009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1563140009 is about 39536.5654679311. The cubic root of 1563140009 is about 1160.5556219030. Note that the first 3 decimals are identical.

The spelling of 1563140009 in words is "one billion, five hundred sixty-three million, one hundred forty thousand, nine".