42020163 has 6 divisors (see below), whose sum is σ = 60695804. Its totient is φ = 28013436.

The previous prime is 42020131. The next prime is 42020171. The reversal of 42020163 is 36102024.

It is a happy number.

It is not a de Polignac number, because 42020163 - 2⁵ = 42020131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42020063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2334445 + ... + 2334462.

Almost surely, 2^42020163 is an apocalyptic number.

42020163 is a deficient number, since it is larger than the sum of its proper divisors (18675641).

42020163 is a wasteful number, since it uses less digits than its factorization.

42020163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668913 (or 4668910 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42020163 is about 6482.2961209744. The cubic root of 42020163 is about 347.6582802923.

Adding to 42020163 its reverse (36102024), we get a palindrome (78122187).

The spelling of 42020163 in words is "forty-two million, twenty thousand, one hundred sixty-three".