268013 has 2 divisors, whose sum is σ = 268014. Its totient is φ = 268012.

The previous prime is 268003. The next prime is 268043. The reversal of 268013 is 310862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 24964 = 493^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 268013 - 2¹⁸ = 5869 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134006 + 134007.

It is an arithmetic number, because the mean of its divisors is an integer number (134007).

2²⁶⁸⁰¹³ is an apocalyptic number.

It is an amenable number.

268013 is a deficient number, since it is larger than the sum of its proper divisors (1).

268013 is an equidigital number, since it uses as much as digits as its factorization.

268013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 268013 is about 517.6997199149. The cubic root of 268013 is about 64.4740997306.

Adding to 268013 its reverse (310862), we get a palindrome (578875).

Subtracting 268013 from its reverse (310862), we obtain a square (42849 = 207²).

The spelling of 268013 in words is "two hundred sixty-eight thousand, thirteen".