2409256243 has 2 divisors, whose sum is σ = 2409256244. Its totient is φ = 2409256242.

The previous prime is 2409256231. The next prime is 2409256261. The reversal of 2409256243 is 3426529042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2409256243 - 2²¹ = 2407159091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2409250243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1204628121 + 1204628122.

It is an arithmetic number, because the mean of its divisors is an integer number (1204628122).

Almost surely, 2^2409256243 is an apocalyptic number.

2409256243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2409256243 is an equidigital number, since it uses as much as digits as its factorization.

2409256243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2409256243 is about 49084.1750771061. The cubic root of 2409256243 is about 1340.5849237792.

The spelling of 2409256243 in words is "two billion, four hundred nine million, two hundred fifty-six thousand, two hundred forty-three".