302213 has 2 divisors, whose sum is σ = 302214. Its totient is φ = 302212.

The previous prime is 302191. The next prime is 302221. The reversal of 302213 is 312203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289444 + 12769 = 538^2 + 113^2 .

It is an emirp because it is prime and its reverse (312203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 302194 and 302203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151106 + 151107.

It is an arithmetic number, because the mean of its divisors is an integer number (151107).

2³⁰²²¹³ is an apocalyptic number.

It is an amenable number.

302213 is a deficient number, since it is larger than the sum of its proper divisors (1).

302213 is an equidigital number, since it uses as much as digits as its factorization.

302213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 302213 is about 549.7390289947. The cubic root of 302213 is about 67.1074980349.

Adding to 302213 its reverse (312203), we get a palindrome (614416).

It can be divided in two parts, 302 and 213, that added together give a palindrome (515).

The spelling of 302213 in words is "three hundred two thousand, two hundred thirteen".