42315122 has 8 divisors (see below), whose sum is σ = 63714816. Its totient is φ = 21076852.

The previous prime is 42315113. The next prime is 42315127. The reversal of 42315122 is 22151324.

42315122 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 junction number, because it is equal to n+sod(n) for n = 42315094 and 42315103.

It is not an unprimeable number, because it can be changed into a prime (42315127) 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 3 ways as a sum of consecutive naturals, for example, 39698 + ... + 40749.

It is an arithmetic number, because the mean of its divisors is an integer number (7964352).

Almost surely, 2^42315122 is an apocalyptic number.

42315122 is a deficient number, since it is larger than the sum of its proper divisors (21399694).

42315122 is a wasteful number, since it uses less digits than its factorization.

42315122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80712.

The product of its digits is 480, while the sum is 20.

The square root of 42315122 is about 6505.0074557990. The cubic root of 42315122 is about 348.4698425353.

Adding to 42315122 its reverse (22151324), we get a palindrome (64466446).

The spelling of 42315122 in words is "forty-two million, three hundred fifteen thousand, one hundred twenty-two".