630214213 has 2 divisors, whose sum is σ = 630214214. Its totient is φ = 630214212.

The previous prime is 630214181. The next prime is 630214231. The reversal of 630214213 is 312412036.

Together with next prime (630214231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609991204 + 20223009 = 24698^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 630214213 - 2⁵ = 630214181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630218213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315107106 + 315107107.

It is an arithmetic number, because the mean of its divisors is an integer number (315107107).

Almost surely, 2^630214213 is an apocalyptic number.

It is an amenable number.

630214213 is a deficient number, since it is larger than the sum of its proper divisors (1).

630214213 is an equidigital number, since it uses as much as digits as its factorization.

630214213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 630214213 is about 25104.0676584493. The cubic root of 630214213 is about 857.3590394649.

Adding to 630214213 its reverse (312412036), we get a palindrome (942626249).

The spelling of 630214213 in words is "six hundred thirty million, two hundred fourteen thousand, two hundred thirteen".