1030685009 has 2 divisors, whose sum is σ = 1030685010. Its totient is φ = 1030685008.

The previous prime is 1030684981. The next prime is 1030685021. The reversal of 1030685009 is 9005860301.

1030685009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1030089025 + 595984 = 32095^2 + 772^2 .

It is an emirp because it is prime and its reverse (9005860301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030685009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1030685069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515342504 + 515342505.

It is an arithmetic number, because the mean of its divisors is an integer number (515342505).

Almost surely, 2^1030685009 is an apocalyptic number.

It is an amenable number.

1030685009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030685009 is an equidigital number, since it uses as much as digits as its factorization.

1030685009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1030685009 is about 32104.2833435042. The cubic root of 1030685009 is about 1010.1254652489.

The spelling of 1030685009 in words is "one billion, thirty million, six hundred eighty-five thousand, nine".