411133861 has 2 divisors, whose sum is σ = 411133862. Its totient is φ = 411133860.

The previous prime is 411133819. The next prime is 411133897. The reversal of 411133861 is 168331114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242393761 + 168740100 = 15569^2 + 12990^2 .

It is a cyclic number.

It is not a de Polignac number, because 411133861 - 2¹³ = 411125669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411136861) 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, 205566930 + 205566931.

It is an arithmetic number, because the mean of its divisors is an integer number (205566931).

Almost surely, 2^411133861 is an apocalyptic number.

It is an amenable number.

411133861 is a deficient number, since it is larger than the sum of its proper divisors (1).

411133861 is an equidigital number, since it uses as much as digits as its factorization.

411133861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 411133861 is about 20276.4361020373. The cubic root of 411133861 is about 743.5800836236.

Adding to 411133861 its reverse (168331114), we get a palindrome (579464975).

The spelling of 411133861 in words is "four hundred eleven million, one hundred thirty-three thousand, eight hundred sixty-one".