409101169 has 2 divisors, whose sum is σ = 409101170. Its totient is φ = 409101168.

The previous prime is 409101151. The next prime is 409101211. The reversal of 409101169 is 961101904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386633569 + 22467600 = 19663^2 + 4740^2 .

It is a cyclic number.

It is not a de Polignac number, because 409101169 - 2⁵ = 409101137 is a prime.

It is a super-2 number, since 2×409101169² = 334727532954333122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 409101169.

It is not a weakly prime, because it can be changed into another prime (409101109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204550584 + 204550585.

It is an arithmetic number, because the mean of its divisors is an integer number (204550585).

Almost surely, 2^409101169 is an apocalyptic number.

It is an amenable number.

409101169 is a deficient number, since it is larger than the sum of its proper divisors (1).

409101169 is an equidigital number, since it uses as much as digits as its factorization.

409101169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 409101169 is about 20226.2495040480. The cubic root of 409101169 is about 742.3526106490.

The spelling of 409101169 in words is "four hundred nine million, one hundred one thousand, one hundred sixty-nine".