42531102 has 32 divisors (see below), whose sum is σ = 95220000. Its totient is φ = 14071104.

The previous prime is 42531061. The next prime is 42531107. The reversal of 42531102 is 20113524.

42531102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42531107) 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 15 ways as a sum of consecutive naturals, for example, 4524 + ... + 10272.

It is an arithmetic number, because the mean of its divisors is an integer number (2975625).

Almost surely, 2^42531102 is an apocalyptic number.

42531102 is an abundant number, since it is smaller than the sum of its proper divisors (52688898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42531102 is a wasteful number, since it uses less digits than its factorization.

42531102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897 (or 5891 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 42531102 is about 6521.5873834520. The cubic root of 42531102 is about 349.0617099823.

Adding to 42531102 its reverse (20113524), we get a palindrome (62644626).

The spelling of 42531102 in words is "forty-two million, five hundred thirty-one thousand, one hundred two".