630610163 has 2 divisors, whose sum is σ = 630610164. Its totient is φ = 630610162.

The previous prime is 630610157. The next prime is 630610193. The reversal of 630610163 is 361016036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630610163 - 2⁴ = 630610147 is a prime.

It is not a weakly prime, because it can be changed into another prime (630610103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315305081 + 315305082.

It is an arithmetic number, because the mean of its divisors is an integer number (315305082).

Almost surely, 2^630610163 is an apocalyptic number.

630610163 is a deficient number, since it is larger than the sum of its proper divisors (1).

630610163 is an equidigital number, since it uses as much as digits as its factorization.

630610163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 630610163 is about 25111.9525923414. The cubic root of 630610163 is about 857.5385552736.

Adding to 630610163 its reverse (361016036), we get a palindrome (991626199).

The spelling of 630610163 in words is "six hundred thirty million, six hundred ten thousand, one hundred sixty-three".