42160043 has 4 divisors (see below), whose sum is σ = 42874680. Its totient is φ = 41445408.

The previous prime is 42160007. The next prime is 42160067. The reversal of 42160043 is 34006124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42160043 - 2¹⁸ = 41897899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42159997 and 42160024.

It is not an unprimeable number, because it can be changed into a prime (42160343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357230 + ... + 357347.

It is an arithmetic number, because the mean of its divisors is an integer number (10718670).

Almost surely, 2^42160043 is an apocalyptic number.

42160043 is a deficient number, since it is larger than the sum of its proper divisors (714637).

42160043 is an equidigital number, since it uses as much as digits as its factorization.

42160043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714636.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42160043 is about 6493.0765435193. The cubic root of 42160043 is about 348.0436236985.

Adding to 42160043 its reverse (34006124), we get a palindrome (76166167).

The spelling of 42160043 in words is "forty-two million, one hundred sixty thousand, forty-three".