42518165 has 8 divisors (see below), whose sum is σ = 51166080. Its totient is φ = 33918352.

The previous prime is 42518153. The next prime is 42518183. The reversal of 42518165 is 56181524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42518165 - 2⁶ = 42518101 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 10049 + ... + 13638.

It is an arithmetic number, because the mean of its divisors is an integer number (6395760).

Almost surely, 2^42518165 is an apocalyptic number.

It is an amenable number.

42518165 is a deficient number, since it is larger than the sum of its proper divisors (8647915).

42518165 is a wasteful number, since it uses less digits than its factorization.

42518165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24051.

The product of its digits is 9600, while the sum is 32.

The square root of 42518165 is about 6520.5954482700. The cubic root of 42518165 is about 349.0263141655.

Adding to 42518165 its reverse (56181524), we get a palindrome (98699689).

The spelling of 42518165 in words is "forty-two million, five hundred eighteen thousand, one hundred sixty-five".