316213 has 2 divisors, whose sum is σ = 316214. Its totient is φ = 316212.

The previous prime is 316201. The next prime is 316219. The reversal of 316213 is 312613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305809 + 10404 = 553^2 + 102^2 .

It is a cyclic number.

It is not a de Polignac number, because 316213 - 2⁹ = 315701 is a prime.

It is a super-2 number, since 2×316213² = 199981322738, which contains 22 as substring.

316213 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158106 + 158107.

It is an arithmetic number, because the mean of its divisors is an integer number (158107).

2³¹⁶²¹³ is an apocalyptic number.

It is an amenable number.

316213 is a deficient number, since it is larger than the sum of its proper divisors (1).

316213 is an equidigital number, since it uses as much as digits as its factorization.

316213 is an evil number, because the sum of its binary digits is even.

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

The square root of 316213 is about 562.3281959852. The cubic root of 316213 is about 68.1281464753.

Adding to 316213 its reverse (312613), we get a palindrome (628826).

Subtracting from 316213 its reverse (312613), we obtain a square (3600 = 60²).

It can be divided in two parts, 316 and 213, that added together give a square (529 = 23²).

The spelling of 316213 in words is "three hundred sixteen thousand, two hundred thirteen".