263205941 has 2 divisors, whose sum is σ = 263205942. Its totient is φ = 263205940.

The previous prime is 263205931. The next prime is 263205961. The reversal of 263205941 is 149502362.

It is a happy number.

263205941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197514916 + 65691025 = 14054^2 + 8105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263205941 is a prime.

It is equal to p_14361566 and since 263205941 and 14361566 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 263205898 and 263205907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263205931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131602970 + 131602971.

It is an arithmetic number, because the mean of its divisors is an integer number (131602971).

Almost surely, 2^263205941 is an apocalyptic number.

It is an amenable number.

263205941 is a deficient number, since it is larger than the sum of its proper divisors (1).

263205941 is an equidigital number, since it uses as much as digits as its factorization.

263205941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 263205941 is about 16223.6229307760. The cubic root of 263205941 is about 640.8630454509.

The spelling of 263205941 in words is "two hundred sixty-three million, two hundred five thousand, nine hundred forty-one".