630000013 has 2 divisors, whose sum is σ = 630000014. Its totient is φ = 630000012.

The previous prime is 629999983. The next prime is 630000017. The reversal of 630000013 is 310000036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595213609 + 34786404 = 24397^2 + 5898^2 .

It is a cyclic number.

It is not a de Polignac number, because 630000013 - 2⁹ = 629999501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 629999948 and 630000002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630000017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315000006 + 315000007.

It is an arithmetic number, because the mean of its divisors is an integer number (315000007).

Almost surely, 2^630000013 is an apocalyptic number.

It is an amenable number.

630000013 is a deficient number, since it is larger than the sum of its proper divisors (1).

630000013 is an equidigital number, since it uses as much as digits as its factorization.

630000013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 630000013 is about 25099.8010549885. The cubic root of 630000013 is about 857.2618941278.

Adding to 630000013 its reverse (310000036), we get a palindrome (940000049).

The spelling of 630000013 in words is "six hundred thirty million, thirteen", and thus it is an aban number.