263113 has 4 divisors (see below), whose sum is σ = 265680. Its totient is φ = 260548.

The previous prime is 263111. The next prime is 263119. The reversal of 263113 is 311362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 263113 - 2¹ = 263111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (66420).

2²⁶³¹¹³ is an apocalyptic number.

It is an amenable number.

263113 is a deficient number, since it is larger than the sum of its proper divisors (2567).

263113 is a wasteful number, since it uses less digits than its factorization.

263113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566.

The product of its digits is 108, while the sum is 16.

The square root of 263113 is about 512.9454161994. The cubic root of 263113 is about 64.0787604570.

Adding to 263113 its reverse (311362), we get a palindrome (574475).

The spelling of 263113 in words is "two hundred sixty-three thousand, one hundred thirteen".