263134073 has 2 divisors, whose sum is σ = 263134074. Its totient is φ = 263134072.

The previous prime is 263134061. The next prime is 263134103. The reversal of 263134073 is 370431362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196336144 + 66797929 = 14012^2 + 8173^2 .

It is a cyclic number.

It is not a de Polignac number, because 263134073 - 2⁶ = 263134009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (263134013) 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, 131567036 + 131567037.

It is an arithmetic number, because the mean of its divisors is an integer number (131567037).

Almost surely, 2^263134073 is an apocalyptic number.

It is an amenable number.

263134073 is a deficient number, since it is larger than the sum of its proper divisors (1).

263134073 is an equidigital number, since it uses as much as digits as its factorization.

263134073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 263134073 is about 16221.4078612185. The cubic root of 263134073 is about 640.8047112332.

The spelling of 263134073 in words is "two hundred sixty-three million, one hundred thirty-four thousand, seventy-three".