845165 has 8 divisors (see below), whose sum is σ = 1038048. Its totient is φ = 660240.

The previous prime is 845137. The next prime is 845167. The reversal of 845165 is 561548.

It is a happy number.

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

It is not a de Polignac number, because 845165 - 2¹⁰ = 844141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845165.

It is not an unprimeable number, because it can be changed into a prime (845167) 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, 1751 + ... + 2180.

It is an arithmetic number, because the mean of its divisors is an integer number (129756).

2⁸⁴⁵¹⁶⁵ is an apocalyptic number.

It is an amenable number.

845165 is a deficient number, since it is larger than the sum of its proper divisors (192883).

845165 is a wasteful number, since it uses less digits than its factorization.

845165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979.

The product of its digits is 4800, while the sum is 29.

The square root of 845165 is about 919.3285593301. The cubic root of 845165 is about 94.5468725973.

The spelling of 845165 in words is "eight hundred forty-five thousand, one hundred sixty-five".