263345441 has 2 divisors, whose sum is σ = 263345442. Its totient is φ = 263345440.

The previous prime is 263345399. The next prime is 263345449. The reversal of 263345441 is 144543362.

263345441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259081216 + 4264225 = 16096^2 + 2065^2 .

It is a cyclic number.

It is not a de Polignac number, because 263345441 - 2¹⁴ = 263329057 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 263345398 and 263345407.

It is not a weakly prime, because it can be changed into another prime (263345449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131672720 + 131672721.

It is an arithmetic number, because the mean of its divisors is an integer number (131672721).

Almost surely, 2^263345441 is an apocalyptic number.

It is an amenable number.

263345441 is a deficient number, since it is larger than the sum of its proper divisors (1).

263345441 is an equidigital number, since it uses as much as digits as its factorization.

263345441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 32.

The square root of 263345441 is about 16227.9216475801. The cubic root of 263345441 is about 640.9762452834.

The spelling of 263345441 in words is "two hundred sixty-three million, three hundred forty-five thousand, four hundred forty-one".