634231163 has 2 divisors, whose sum is σ = 634231164. Its totient is φ = 634231162.

The previous prime is 634231133. The next prime is 634231181. The reversal of 634231163 is 361132436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634231163 - 2⁶ = 634231099 is a prime.

It is not a weakly prime, because it can be changed into another prime (634231133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317115581 + 317115582.

It is an arithmetic number, because the mean of its divisors is an integer number (317115582).

Almost surely, 2^634231163 is an apocalyptic number.

634231163 is a deficient number, since it is larger than the sum of its proper divisors (1).

634231163 is an equidigital number, since it uses as much as digits as its factorization.

634231163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 634231163 is about 25183.9465334566. The cubic root of 634231163 is about 859.1767690049.

Adding to 634231163 its reverse (361132436), we get a palindrome (995363599).

The spelling of 634231163 in words is "six hundred thirty-four million, two hundred thirty-one thousand, one hundred sixty-three".