630452653 has 2 divisors, whose sum is σ = 630452654. Its totient is φ = 630452652.

The previous prime is 630452639. The next prime is 630452707. The reversal of 630452653 is 356254036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 630361449 + 91204 = 25107^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630452653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630452353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315226326 + 315226327.

It is an arithmetic number, because the mean of its divisors is an integer number (315226327).

Almost surely, 2^630452653 is an apocalyptic number.

It is an amenable number.

630452653 is a deficient number, since it is larger than the sum of its proper divisors (1).

630452653 is an equidigital number, since it uses as much as digits as its factorization.

630452653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 630452653 is about 25108.8162405160. The cubic root of 630452653 is about 857.4671523937.

The spelling of 630452653 in words is "six hundred thirty million, four hundred fifty-two thousand, six hundred fifty-three".