1169056409 has 2 divisors, whose sum is σ = 1169056410. Its totient is φ = 1169056408.

The previous prime is 1169056373. The next prime is 1169056429. The reversal of 1169056409 is 9046509611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1047946384 + 121110025 = 32372^2 + 11005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1169056409 - 2²⁸ = 900620953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1169056429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584528204 + 584528205.

It is an arithmetic number, because the mean of its divisors is an integer number (584528205).

Almost surely, 2^1169056409 is an apocalyptic number.

It is an amenable number.

1169056409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1169056409 is an equidigital number, since it uses as much as digits as its factorization.

1169056409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 1169056409 is about 34191.4669033079. The cubic root of 1169056409 is about 1053.4448937703. Note that the first 3 decimals are identical.

The spelling of 1169056409 in words is "one billion, one hundred sixty-nine million, fifty-six thousand, four hundred nine".