42861115 has 16 divisors (see below), whose sum is σ = 56337120. Its totient is φ = 31045120.

The previous prime is 42861109. The next prime is 42861149. The reversal of 42861115 is 51116824.

It is not a de Polignac number, because 42861115 - 2⁵ = 42861083 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13347 + ... + 16243.

It is an arithmetic number, because the mean of its divisors is an integer number (3521070).

Almost surely, 2^42861115 is an apocalyptic number.

42861115 is a deficient number, since it is larger than the sum of its proper divisors (13476005).

42861115 is a wasteful number, since it uses less digits than its factorization.

42861115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182.

The product of its digits is 1920, while the sum is 28.

The square root of 42861115 is about 6546.8400774725. The cubic root of 42861115 is about 349.9622136078.

Adding to 42861115 its reverse (51116824), we get a palindrome (93977939).

The spelling of 42861115 in words is "forty-two million, eight hundred sixty-one thousand, one hundred fifteen".