68213 has 2 divisors, whose sum is σ = 68214. Its totient is φ = 68212.

The previous prime is 68209. The next prime is 68219. The reversal of 68213 is 31286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54289 + 13924 = 233^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 68213 - 2² = 68209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34106 + 34107.

It is an arithmetic number, because the mean of its divisors is an integer number (34107).

2⁶⁸²¹³ is an apocalyptic number.

It is an amenable number.

68213 is a deficient number, since it is larger than the sum of its proper divisors (1).

68213 is an equidigital number, since it uses as much as digits as its factorization.

68213 is an evil number, because the sum of its binary digits is even.

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

The square root of 68213 is about 261.1761857444. The cubic root of 68213 is about 40.8591238802.

Adding to 68213 its reverse (31286), we get a palindrome (99499).

The spelling of 68213 in words is "sixty-eight thousand, two hundred thirteen".