630203641 has 2 divisors, whose sum is σ = 630203642. Its totient is φ = 630203640.

The previous prime is 630203593. The next prime is 630203659. The reversal of 630203641 is 146302036.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606193641 + 24010000 = 24621^2 + 4900^2 .

It is a cyclic number.

It is not a de Polignac number, because 630203641 - 2⁷ = 630203513 is a prime.

It is not a weakly prime, because it can be changed into another prime (630203341) 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, 315101820 + 315101821.

It is an arithmetic number, because the mean of its divisors is an integer number (315101821).

Almost surely, 2^630203641 is an apocalyptic number.

It is an amenable number.

630203641 is a deficient number, since it is larger than the sum of its proper divisors (1).

630203641 is an equidigital number, since it uses as much as digits as its factorization.

630203641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 630203641 is about 25103.8570940802. The cubic root of 630203641 is about 857.3542453011.

Adding to 630203641 its reverse (146302036), we get a palindrome (776505677).

The spelling of 630203641 in words is "six hundred thirty million, two hundred three thousand, six hundred forty-one".