243016933 has 2 divisors, whose sum is σ = 243016934. Its totient is φ = 243016932.

The previous prime is 243016909. The next prime is 243016937. The reversal of 243016933 is 339610342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239568484 + 3448449 = 15478^2 + 1857^2 .

It is a cyclic number.

It is not a de Polignac number, because 243016933 - 2⁵ = 243016901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243016895 and 243016904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243016937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121508466 + 121508467.

It is an arithmetic number, because the mean of its divisors is an integer number (121508467).

Almost surely, 2^243016933 is an apocalyptic number.

It is an amenable number.

243016933 is a deficient number, since it is larger than the sum of its proper divisors (1).

243016933 is an equidigital number, since it uses as much as digits as its factorization.

243016933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 243016933 is about 15589.0003848868. Note that the first 3 decimals coincide. The cubic root of 243016933 is about 624.0396412535.

The spelling of 243016933 in words is "two hundred forty-three million, sixteen thousand, nine hundred thirty-three".