118213 has 2 divisors, whose sum is σ = 118214. Its totient is φ = 118212.

The previous prime is 118211. The next prime is 118219. The reversal of 118213 is 312811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114244 + 3969 = 338^2 + 63^2 .

It is a cyclic number.

It is not a de Polignac number, because 118213 - 2¹ = 118211 is a prime.

Together with 118211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59106 + 59107.

It is an arithmetic number, because the mean of its divisors is an integer number (59107).

2¹¹⁸²¹³ is an apocalyptic number.

It is an amenable number.

118213 is a deficient number, since it is larger than the sum of its proper divisors (1).

118213 is an equidigital number, since it uses as much as digits as its factorization.

118213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 16.

The square root of 118213 is about 343.8211744497. The cubic root of 118213 is about 49.0781759177.

The spelling of 118213 in words is "one hundred eighteen thousand, two hundred thirteen".