42531118 has 24 divisors (see below), whose sum is σ = 74623032. Its totient is φ = 18126864.

The previous prime is 42531107. The next prime is 42531119. The reversal of 42531118 is 81113524.

42531118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42531092 and 42531101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42531119) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 18205 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (3109293).

Almost surely, 2^42531118 is an apocalyptic number.

42531118 is a deficient number, since it is larger than the sum of its proper divisors (32091914).

42531118 is a wasteful number, since it uses less digits than its factorization.

42531118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2409 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 42531118 is about 6521.5886101471. The cubic root of 42531118 is about 349.0617537541.

The spelling of 42531118 in words is "forty-two million, five hundred thirty-one thousand, one hundred eighteen".