42125115 has 16 divisors (see below), whose sum is σ = 68544000. Its totient is φ = 22085472.

The previous prime is 42125107. The next prime is 42125117. The reversal of 42125115 is 51152124.

42125115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42125115 - 2³ = 42125107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42125091 and 42125100.

It is not an unprimeable number, because it can be changed into a prime (42125117) 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, 22915 + ... + 24684.

It is an arithmetic number, because the mean of its divisors is an integer number (4284000).

Almost surely, 2^42125115 is an apocalyptic number.

42125115 is a deficient number, since it is larger than the sum of its proper divisors (26418885).

42125115 is a wasteful number, since it uses less digits than its factorization.

42125115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47666.

The product of its digits is 400, while the sum is 21.

The square root of 42125115 is about 6490.3863521365. The cubic root of 42125115 is about 347.9474834875.

Adding to 42125115 its reverse (51152124), we get a palindrome (93277239).

The spelling of 42125115 in words is "forty-two million, one hundred twenty-five thousand, one hundred fifteen".