631063163 has 2 divisors, whose sum is σ = 631063164. Its totient is φ = 631063162.

The previous prime is 631063159. The next prime is 631063183. The reversal of 631063163 is 361360136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 631063163 - 2² = 631063159 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (631063183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315531581 + 315531582.

It is an arithmetic number, because the mean of its divisors is an integer number (315531582).

Almost surely, 2^631063163 is an apocalyptic number.

631063163 is a deficient number, since it is larger than the sum of its proper divisors (1).

631063163 is an equidigital number, since it uses as much as digits as its factorization.

631063163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 631063163 is about 25120.9705823641. The cubic root of 631063163 is about 857.7438442710.

The spelling of 631063163 in words is "six hundred thirty-one million, sixty-three thousand, one hundred sixty-three".