243808063 has 2 divisors, whose sum is σ = 243808064. Its totient is φ = 243808062.

The previous prime is 243808051. The next prime is 243808079. The reversal of 243808063 is 360808342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243808063 - 2⁵ = 243808031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243808013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121904031 + 121904032.

It is an arithmetic number, because the mean of its divisors is an integer number (121904032).

Almost surely, 2^243808063 is an apocalyptic number.

243808063 is a deficient number, since it is larger than the sum of its proper divisors (1).

243808063 is an equidigital number, since it uses as much as digits as its factorization.

243808063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 243808063 is about 15614.3543894712. The cubic root of 243808063 is about 624.7160848070.

The spelling of 243808063 in words is "two hundred forty-three million, eight hundred eight thousand, sixty-three".