42819163 has 2 divisors, whose sum is σ = 42819164. Its totient is φ = 42819162.

The previous prime is 42819157. The next prime is 42819199. The reversal of 42819163 is 36191824.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42819163 is a prime.

It is not a weakly prime, because it can be changed into another prime (42819113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21409581 + 21409582.

It is an arithmetic number, because the mean of its divisors is an integer number (21409582).

Almost surely, 2^42819163 is an apocalyptic number.

42819163 is a deficient number, since it is larger than the sum of its proper divisors (1).

42819163 is an equidigital number, since it uses as much as digits as its factorization.

42819163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 42819163 is about 6543.6353046300. The cubic root of 42819163 is about 349.8479965802.

It can be divided in two parts, 428 and 19163, that added together give a palindrome (19591).

The spelling of 42819163 in words is "forty-two million, eight hundred nineteen thousand, one hundred sixty-three".