42315315 has 16 divisors (see below), whose sum is σ = 77376768. Its totient is φ = 19344096.

The previous prime is 42315313. The next prime is 42315319. The reversal of 42315315 is 51351324.

42315315 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 42315315 - 2¹ = 42315313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42315313) 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, 201397 + ... + 201606.

It is an arithmetic number, because the mean of its divisors is an integer number (4836048).

Almost surely, 2^42315315 is an apocalyptic number.

42315315 is a deficient number, since it is larger than the sum of its proper divisors (35061453).

42315315 is a wasteful number, since it uses less digits than its factorization.

42315315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403018.

The product of its digits is 1800, while the sum is 24.

The square root of 42315315 is about 6505.0222905075. The cubic root of 42315315 is about 348.4703723268.

Adding to 42315315 its reverse (51351324), we get a palindrome (93666639).

The spelling of 42315315 in words is "forty-two million, three hundred fifteen thousand, three hundred fifteen".