411243109 has 2 divisors, whose sum is σ = 411243110. Its totient is φ = 411243108.

The previous prime is 411243097. The next prime is 411243127. The reversal of 411243109 is 901342114.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346890625 + 64352484 = 18625^2 + 8022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411243109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411243199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205621554 + 205621555.

It is an arithmetic number, because the mean of its divisors is an integer number (205621555).

Almost surely, 2^411243109 is an apocalyptic number.

It is an amenable number.

411243109 is a deficient number, since it is larger than the sum of its proper divisors (1).

411243109 is an equidigital number, since it uses as much as digits as its factorization.

411243109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 411243109 is about 20279.1298876456. The cubic root of 411243109 is about 743.6459400679.

The spelling of 411243109 in words is "four hundred eleven million, two hundred forty-three thousand, one hundred nine".