1043000009 has 2 divisors, whose sum is σ = 1043000010. Its totient is φ = 1043000008.

The previous prime is 1042999981. The next prime is 1043000017. The reversal of 1043000009 is 9000003401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986148409 + 56851600 = 31403^2 + 7540^2 .

It is an emirp because it is prime and its reverse (9000003401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1043000009 - 2¹² = 1042995913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1043000029) 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, 521500004 + 521500005.

It is an arithmetic number, because the mean of its divisors is an integer number (521500005).

Almost surely, 2^1043000009 is an apocalyptic number.

It is an amenable number.

1043000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043000009 is an equidigital number, since it uses as much as digits as its factorization.

1043000009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1043000009 is about 32295.5106632485. The cubic root of 1043000009 is about 1014.1326632470.

The spelling of 1043000009 in words is "one billion, forty-three million, nine", and thus it is an aban number and an uban number.