42681315 has 16 divisors (see below), whose sum is σ = 71884800. Its totient is φ = 21565152.

The previous prime is 42681299. The next prime is 42681319. The reversal of 42681315 is 51318624.

42681315 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 42681315 - 2⁴ = 42681299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42681319) 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, 74595 + ... + 75164.

It is an arithmetic number, because the mean of its divisors is an integer number (4492800).

Almost surely, 2^42681315 is an apocalyptic number.

42681315 is a deficient number, since it is larger than the sum of its proper divisors (29203485).

42681315 is a wasteful number, since it uses less digits than its factorization.

42681315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149786.

The product of its digits is 5760, while the sum is 30.

The square root of 42681315 is about 6533.0938306441. The cubic root of 42681315 is about 349.4721703748.

Adding to 42681315 its reverse (51318624), we get a palindrome (93999939).

The spelling of 42681315 in words is "forty-two million, six hundred eighty-one thousand, three hundred fifteen".