1030705009 has 2 divisors, whose sum is σ = 1030705010. Its totient is φ = 1030705008.

The previous prime is 1030705001. The next prime is 1030705051. The reversal of 1030705009 is 9005070301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030602609 + 102400 = 32103^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030705009 - 2³ = 1030705001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1030705001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515352504 + 515352505.

It is an arithmetic number, because the mean of its divisors is an integer number (515352505).

Almost surely, 2^1030705009 is an apocalyptic number.

It is an amenable number.

1030705009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030705009 is an equidigital number, since it uses as much as digits as its factorization.

1030705009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 1030705009 is about 32104.5948269091. The cubic root of 1030705009 is about 1010.1319988903.

The spelling of 1030705009 in words is "one billion, thirty million, seven hundred five thousand, nine".