42165313 has 8 divisors (see below), whose sum is σ = 44467520. Its totient is φ = 39871440.

The previous prime is 42165307. The next prime is 42165323. The reversal of 42165313 is 31356124.

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 42165313 - 2²⁵ = 8610881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42165323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10231 + ... + 13747.

It is an arithmetic number, because the mean of its divisors is an integer number (5558440).

Almost surely, 2^42165313 is an apocalyptic number.

It is an amenable number.

42165313 is a deficient number, since it is larger than the sum of its proper divisors (2302207).

42165313 is a wasteful number, since it uses less digits than its factorization.

42165313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167.

The product of its digits is 2160, while the sum is 25.

The square root of 42165313 is about 6493.4823477084. The cubic root of 42165313 is about 348.0581248972.

The spelling of 42165313 in words is "forty-two million, one hundred sixty-five thousand, three hundred thirteen".