263054161 has 2 divisors, whose sum is σ = 263054162. Its totient is φ = 263054160.

The previous prime is 263054153. The next prime is 263054173. The reversal of 263054161 is 161450362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248377600 + 14676561 = 15760^2 + 3831^2 .

It is a cyclic number.

It is not a de Polignac number, because 263054161 - 2³ = 263054153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (263054101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131527080 + 131527081.

It is an arithmetic number, because the mean of its divisors is an integer number (131527081).

Almost surely, 2^263054161 is an apocalyptic number.

It is an amenable number.

263054161 is a deficient number, since it is larger than the sum of its proper divisors (1).

263054161 is an equidigital number, since it uses as much as digits as its factorization.

263054161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 263054161 is about 16218.9445094309. The cubic root of 263054161 is about 640.7398353441.

The spelling of 263054161 in words is "two hundred sixty-three million, fifty-four thousand, one hundred sixty-one".