263315473 has 2 divisors, whose sum is σ = 263315474. Its totient is φ = 263315472.

The previous prime is 263315443. The next prime is 263315539. The reversal of 263315473 is 374513362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249861249 + 13454224 = 15807^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 263315473 - 2⁵ = 263315441 is a prime.

It is not a weakly prime, because it can be changed into another prime (263315443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131657736 + 131657737.

It is an arithmetic number, because the mean of its divisors is an integer number (131657737).

Almost surely, 2^263315473 is an apocalyptic number.

It is an amenable number.

263315473 is a deficient number, since it is larger than the sum of its proper divisors (1).

263315473 is an equidigital number, since it uses as much as digits as its factorization.

263315473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 34.

The square root of 263315473 is about 16226.9982744807. The cubic root of 263315473 is about 640.9519305725.

The spelling of 263315473 in words is "two hundred sixty-three million, three hundred fifteen thousand, four hundred seventy-three".