1071320609 has 2 divisors, whose sum is σ = 1071320610. Its totient is φ = 1071320608.

The previous prime is 1071320563. The next prime is 1071320629. The reversal of 1071320609 is 9060231701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723610000 + 347710609 = 26900^2 + 18647^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071320609 - 2⁸ = 1071320353 is a prime.

It is a super-2 number, since 2×1071320609² = 2295455694536261762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1071320629) 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, 535660304 + 535660305.

It is an arithmetic number, because the mean of its divisors is an integer number (535660305).

Almost surely, 2^1071320609 is an apocalyptic number.

It is an amenable number.

1071320609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071320609 is an equidigital number, since it uses as much as digits as its factorization.

1071320609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1071320609 is about 32731.0343405154. The cubic root of 1071320609 is about 1023.2297372261.

The spelling of 1071320609 in words is "one billion, seventy-one million, three hundred twenty thousand, six hundred nine".