630314549 has 2 divisors, whose sum is σ = 630314550. Its totient is φ = 630314548.

The previous prime is 630314527. The next prime is 630314617. The reversal of 630314549 is 945413036.

It is a happy number.

630314549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453903025 + 176411524 = 21305^2 + 13282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630314549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630314749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315157274 + 315157275.

It is an arithmetic number, because the mean of its divisors is an integer number (315157275).

Almost surely, 2^630314549 is an apocalyptic number.

It is an amenable number.

630314549 is a deficient number, since it is larger than the sum of its proper divisors (1).

630314549 is an equidigital number, since it uses as much as digits as its factorization.

630314549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 630314549 is about 25106.0659801571. The cubic root of 630314549 is about 857.4045369111.

The spelling of 630314549 in words is "six hundred thirty million, three hundred fourteen thousand, five hundred forty-nine".