42186125 has 8 divisors (see below), whose sum is σ = 52648440. Its totient is φ = 33748800.

The previous prime is 42186113. The next prime is 42186149. The reversal of 42186125 is 52168124.

42186125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 41550916 = 797^2 + 6446^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42186125 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 168620 + ... + 168869.

It is an arithmetic number, because the mean of its divisors is an integer number (6581055).

Almost surely, 2^42186125 is an apocalyptic number.

It is an amenable number.

42186125 is a deficient number, since it is larger than the sum of its proper divisors (10462315).

42186125 is an equidigital number, since it uses as much as digits as its factorization.

42186125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337504 (or 337494 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 42186125 is about 6495.0846799715. The cubic root of 42186125 is about 348.1153804445.

The spelling of 42186125 in words is "forty-two million, one hundred eighty-six thousand, one hundred twenty-five".