263115233 has 2 divisors, whose sum is σ = 263115234. Its totient is φ = 263115232.

The previous prime is 263115227. The next prime is 263115241. The reversal of 263115233 is 332511362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218064289 + 45050944 = 14767^2 + 6712^2 .

It is a cyclic number.

It is not a de Polignac number, because 263115233 - 2⁴ = 263115217 is a prime.

It is not a weakly prime, because it can be changed into another prime (263115133) 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, 131557616 + 131557617.

It is an arithmetic number, because the mean of its divisors is an integer number (131557617).

Almost surely, 2^263115233 is an apocalyptic number.

It is an amenable number.

263115233 is a deficient number, since it is larger than the sum of its proper divisors (1).

263115233 is an equidigital number, since it uses as much as digits as its factorization.

263115233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 263115233 is about 16220.8271367400. The cubic root of 263115233 is about 640.7894173202.

Adding to 263115233 its reverse (332511362), we get a palindrome (595626595).

The spelling of 263115233 in words is "two hundred sixty-three million, one hundred fifteen thousand, two hundred thirty-three".