42163085 has 4 divisors (see below), whose sum is σ = 50595708. Its totient is φ = 33730464.

The previous prime is 42163067. The next prime is 42163097. The reversal of 42163085 is 58036124.

42163085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5354596 + 36808489 = 2314^2 + 6067^2 .

It is a cyclic number.

It is not a de Polignac number, because 42163085 - 2¹² = 42158989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4216304 + ... + 4216313.

It is an arithmetic number, because the mean of its divisors is an integer number (12648927).

Almost surely, 2^42163085 is an apocalyptic number.

It is an amenable number.

42163085 is a deficient number, since it is larger than the sum of its proper divisors (8432623).

42163085 is an equidigital number, since it uses as much as digits as its factorization.

42163085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8432622.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 42163085 is about 6493.3107888041. The cubic root of 42163085 is about 348.0519943671.

The spelling of 42163085 in words is "forty-two million, one hundred sixty-three thousand, eighty-five".