42108583 has 4 divisors (see below), whose sum is σ = 45936648. Its totient is φ = 38280520.

The previous prime is 42108559. The next prime is 42108587. The reversal of 42108583 is 38580124.

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

It is a cyclic number.

It is not a de Polignac number, because 42108583 - 2²¹ = 40011431 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42108587) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1914016 + ... + 1914037.

It is an arithmetic number, because the mean of its divisors is an integer number (11484162).

Almost surely, 2^42108583 is an apocalyptic number.

42108583 is a deficient number, since it is larger than the sum of its proper divisors (3828065).

42108583 is a wasteful number, since it uses less digits than its factorization.

42108583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3828064.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 42108583 is about 6489.1126512028. The cubic root of 42108583 is about 347.9019602056.

The spelling of 42108583 in words is "forty-two million, one hundred eight thousand, five hundred eighty-three".