409133243 has 2 divisors, whose sum is σ = 409133244. Its totient is φ = 409133242.

The previous prime is 409133233. The next prime is 409133297. The reversal of 409133243 is 342331904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 409133243 - 2⁴ = 409133227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (409133233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204566621 + 204566622.

It is an arithmetic number, because the mean of its divisors is an integer number (204566622).

Almost surely, 2^409133243 is an apocalyptic number.

409133243 is a deficient number, since it is larger than the sum of its proper divisors (1).

409133243 is an equidigital number, since it uses as much as digits as its factorization.

409133243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 409133243 is about 20227.0423690662. The cubic root of 409133243 is about 742.3720105735.

The spelling of 409133243 in words is "four hundred nine million, one hundred thirty-three thousand, two hundred forty-three".