630361441 has 2 divisors, whose sum is σ = 630361442. Its totient is φ = 630361440.

The previous prime is 630361439. The next prime is 630361451. The reversal of 630361441 is 144163036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606390625 + 23970816 = 24625^2 + 4896^2 .

It is a cyclic number.

It is not a de Polignac number, because 630361441 - 2¹ = 630361439 is a prime.

Together with 630361439, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (630361451) 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, 315180720 + 315180721.

It is an arithmetic number, because the mean of its divisors is an integer number (315180721).

Almost surely, 2^630361441 is an apocalyptic number.

It is an amenable number.

630361441 is a deficient number, since it is larger than the sum of its proper divisors (1).

630361441 is an equidigital number, since it uses as much as digits as its factorization.

630361441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 630361441 is about 25106.9998406819. Note that the first 3 decimals coincide. The cubic root of 630361441 is about 857.4257984736.

The spelling of 630361441 in words is "six hundred thirty million, three hundred sixty-one thousand, four hundred forty-one".