1816025243 has 2 divisors, whose sum is σ = 1816025244. Its totient is φ = 1816025242.

The previous prime is 1816025209. The next prime is 1816025249. The reversal of 1816025243 is 3425206181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1816025243 - 2¹⁰ = 1816024219 is a prime.

It is not a weakly prime, because it can be changed into another prime (1816025249) 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, 908012621 + 908012622.

It is an arithmetic number, because the mean of its divisors is an integer number (908012622).

Almost surely, 2^1816025243 is an apocalyptic number.

1816025243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1816025243 is an equidigital number, since it uses as much as digits as its factorization.

1816025243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1816025243 is about 42614.8476824686. The cubic root of 1816025243 is about 1220.0396930112.

The spelling of 1816025243 in words is "one billion, eight hundred sixteen million, twenty-five thousand, two hundred forty-three".