42631163 has 2 divisors, whose sum is σ = 42631164. Its totient is φ = 42631162.

The previous prime is 42631157. The next prime is 42631181. The reversal of 42631163 is 36113624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42631163 - 2¹⁰ = 42630139 is a prime.

It is not a weakly prime, because it can be changed into another prime (42631123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315581 + 21315582.

It is an arithmetic number, because the mean of its divisors is an integer number (21315582).

Almost surely, 2^42631163 is an apocalyptic number.

42631163 is a deficient number, since it is larger than the sum of its proper divisors (1).

42631163 is an equidigital number, since it uses as much as digits as its factorization.

42631163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 42631163 is about 6529.2543984746. The cubic root of 42631163 is about 349.3352361558.

Adding to 42631163 its reverse (36113624), we get a palindrome (78744787).

The spelling of 42631163 in words is "forty-two million, six hundred thirty-one thousand, one hundred sixty-three".