630120247 has 2 divisors, whose sum is σ = 630120248. Its totient is φ = 630120246.

The previous prime is 630120223. The next prime is 630120289. The reversal of 630120247 is 742021036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630120247 - 2⁷ = 630120119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630120217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315060123 + 315060124.

It is an arithmetic number, because the mean of its divisors is an integer number (315060124).

Almost surely, 2^630120247 is an apocalyptic number.

630120247 is a deficient number, since it is larger than the sum of its proper divisors (1).

630120247 is an equidigital number, since it uses as much as digits as its factorization.

630120247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 630120247 is about 25102.1960593092. The cubic root of 630120247 is about 857.3164261216.

The spelling of 630120247 in words is "six hundred thirty million, one hundred twenty thousand, two hundred forty-seven".