42142163 has 4 divisors (see below), whose sum is σ = 48162480. Its totient is φ = 36121848.

The previous prime is 42142151. The next prime is 42142169. The reversal of 42142163 is 36124124.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42142163 - 2¹⁶ = 42076627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42142169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3010148 + ... + 3010161.

It is an arithmetic number, because the mean of its divisors is an integer number (12040620).

Almost surely, 2^42142163 is an apocalyptic number.

42142163 is a deficient number, since it is larger than the sum of its proper divisors (6020317).

42142163 is an equidigital number, since it uses as much as digits as its factorization.

42142163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020316.

The product of its digits is 1152, while the sum is 23.

The square root of 42142163 is about 6491.6995463438. The cubic root of 42142163 is about 347.9944151788.

Adding to 42142163 its reverse (36124124), we get a palindrome (78266287).

The spelling of 42142163 in words is "forty-two million, one hundred forty-two thousand, one hundred sixty-three".