42515126 has 4 divisors (see below), whose sum is σ = 63772692. Its totient is φ = 21257562.

The previous prime is 42515117. The next prime is 42515159. The reversal of 42515126 is 62151524.

42515126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42515095 and 42515104.

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 as a sum of consecutive naturals, namely, 10628780 + ... + 10628783.

It is an arithmetic number, because the mean of its divisors is an integer number (15943173).

Almost surely, 2^42515126 is an apocalyptic number.

42515126 is a deficient number, since it is larger than the sum of its proper divisors (21257566).

42515126 is a wasteful number, since it uses less digits than its factorization.

42515126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21257565.

The product of its digits is 2400, while the sum is 26.

The square root of 42515126 is about 6520.3624132405. The cubic root of 42515126 is about 349.0179983767.

It can be divided in two parts, 425 and 15126, that added together give a palindrome (15551).

The spelling of 42515126 in words is "forty-two million, five hundred fifteen thousand, one hundred twenty-six".