263941241 has 2 divisors, whose sum is σ = 263941242. Its totient is φ = 263941240.

The previous prime is 263941213. The next prime is 263941243. The reversal of 263941241 is 142149362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231678841 + 32262400 = 15221^2 + 5680^2 .

It is a cyclic number.

It is not a de Polignac number, because 263941241 - 2⁶ = 263941177 is a prime.

It is a Sophie Germain prime.

Together with 263941243, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 263941198 and 263941207.

It is not a weakly prime, because it can be changed into another prime (263941243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131970620 + 131970621.

It is an arithmetic number, because the mean of its divisors is an integer number (131970621).

Almost surely, 2^263941241 is an apocalyptic number.

It is an amenable number.

263941241 is a deficient number, since it is larger than the sum of its proper divisors (1).

263941241 is an equidigital number, since it uses as much as digits as its factorization.

263941241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 263941241 is about 16246.2685254184. The cubic root of 263941241 is about 641.4592686521.

The spelling of 263941241 in words is "two hundred sixty-three million, nine hundred forty-one thousand, two hundred forty-one".