42165319 has 8 divisors (see below), whose sum is σ = 48250368. Its totient is φ = 36095640.

The previous prime is 42165307. The next prime is 42165323. The reversal of 42165319 is 91356124.

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

It is not a de Polignac number, because 42165319 - 2⁷ = 42165191 is a prime.

It is a super-2 number, since 2×42165319² = 3555828252743522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42165349) 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 7 ways as a sum of consecutive naturals, for example, 2814 + ... + 9604.

It is an arithmetic number, because the mean of its divisors is an integer number (6031296).

Almost surely, 2^42165319 is an apocalyptic number.

42165319 is a deficient number, since it is larger than the sum of its proper divisors (6085049).

42165319 is an equidigital number, since it uses as much as digits as its factorization.

42165319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685.

The product of its digits is 6480, while the sum is 31.

The square root of 42165319 is about 6493.4828097101. The cubic root of 42165319 is about 348.0581414064.

The spelling of 42165319 in words is "forty-two million, one hundred sixty-five thousand, three hundred nineteen".