42103165 has 8 divisors (see below), whose sum is σ = 54410328. Its totient is φ = 31091520.

The previous prime is 42103153. The next prime is 42103189. The reversal of 42103165 is 56130124.

42103165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34969 + 42068196 = 187^2 + 6486^2 .

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

It is not a de Polignac number, because 42103165 - 2⁹ = 42102653 is a prime.

It is a Duffinian number.

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, 323806 + ... + 323935.

It is an arithmetic number, because the mean of its divisors is an integer number (6801291).

Almost surely, 2^42103165 is an apocalyptic number.

It is an amenable number.

42103165 is a deficient number, since it is larger than the sum of its proper divisors (12307163).

42103165 is a wasteful number, since it uses less digits than its factorization.

42103165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647759.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 42103165 is about 6488.6951692925. The cubic root of 42103165 is about 347.8870383573.

Adding to 42103165 its reverse (56130124), we get a palindrome (98233289).

The spelling of 42103165 in words is "forty-two million, one hundred three thousand, one hundred sixty-five".