1043957609 has 2 divisors, whose sum is σ = 1043957610. Its totient is φ = 1043957608.

The previous prime is 1043957567. The next prime is 1043957657. The reversal of 1043957609 is 9067593401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 854977600 + 188980009 = 29240^2 + 13747^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043957609 - 2⁸ = 1043957353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1043957609.

It is not a weakly prime, because it can be changed into another prime (1043957669) 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, 521978804 + 521978805.

It is an arithmetic number, because the mean of its divisors is an integer number (521978805).

Almost surely, 2^1043957609 is an apocalyptic number.

It is an amenable number.

1043957609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043957609 is an equidigital number, since it uses as much as digits as its factorization.

1043957609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 1043957609 is about 32310.3328518912. The cubic root of 1043957609 is about 1014.4429337410.

The spelling of 1043957609 in words is "one billion, forty-three million, nine hundred fifty-seven thousand, six hundred nine".