42106565 has 8 divisors (see below), whose sum is σ = 53187360. Its totient is φ = 31912272.

The previous prime is 42106541. The next prime is 42106613. The reversal of 42106565 is 56560124.

42106565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42106565 - 2¹² = 42102469 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221519 + ... + 221708.

It is an arithmetic number, because the mean of its divisors is an integer number (6648420).

Almost surely, 2^42106565 is an apocalyptic number.

It is an amenable number.

42106565 is a deficient number, since it is larger than the sum of its proper divisors (11080795).

42106565 is a wasteful number, since it uses less digits than its factorization.

42106565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443251.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 42106565 is about 6488.9571581264. The cubic root of 42106565 is about 347.8964025313.

Adding to 42106565 its reverse (56560124), we get a palindrome (98666689).

The spelling of 42106565 in words is "forty-two million, one hundred six thousand, five hundred sixty-five".