42131237 has 8 divisors (see below), whose sum is σ = 43040160. Its totient is φ = 41226640.

The previous prime is 42131183. The next prime is 42131267. The reversal of 42131237 is 73213124.

42131237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42131237 - 2¹⁰ = 42130213 is a prime.

It is a super-2 number, since 2×42131237² = 3550082262300338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131267) 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 7 ways as a sum of consecutive naturals, for example, 25214 + ... + 26832.

It is an arithmetic number, because the mean of its divisors is an integer number (5380020).

Almost surely, 2^42131237 is an apocalyptic number.

It is an amenable number.

42131237 is a deficient number, since it is larger than the sum of its proper divisors (908923).

42131237 is a wasteful number, since it uses less digits than its factorization.

42131237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163.

The product of its digits is 1008, while the sum is 23.

The square root of 42131237 is about 6490.8579556173. The cubic root of 42131237 is about 347.9643382887.

The spelling of 42131237 in words is "forty-two million, one hundred thirty-one thousand, two hundred thirty-seven".