1035409409 has 2 divisors, whose sum is σ = 1035409410. Its totient is φ = 1035409408.

The previous prime is 1035409399. The next prime is 1035409433. The reversal of 1035409409 is 9049045301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 961930225 + 73479184 = 31015^2 + 8572^2 .

It is a cyclic number.

It is not a de Polignac number, because 1035409409 - 2⁸ = 1035409153 is a prime.

It is a super-3 number, since 3×1035409409³ (a number of 28 digits) contains 333 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 (1035409499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517704704 + 517704705.

It is an arithmetic number, because the mean of its divisors is an integer number (517704705).

Almost surely, 2^1035409409 is an apocalyptic number.

It is an amenable number.

1035409409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1035409409 is an equidigital number, since it uses as much as digits as its factorization.

1035409409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1035409409 is about 32177.7781861955. The cubic root of 1035409409 is about 1011.6664998171. Note that the first 3 decimals are identical.

The spelling of 1035409409 in words is "one billion, thirty-five million, four hundred nine thousand, four hundred nine".