445165 has 24 divisors (see below), whose sum is σ = 656640. Its totient is φ = 288288.

The previous prime is 445157. The next prime is 445169. The reversal of 445165 is 561544.

It is not a de Polignac number, because 445165 - 2³ = 445157 is a prime.

445165 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5596 + ... + 5674.

It is an arithmetic number, because the mean of its divisors is an integer number (27360).

2⁴⁴⁵¹⁶⁵ is an apocalyptic number.

It is an amenable number.

445165 is a deficient number, since it is larger than the sum of its proper divisors (211475).

445165 is a wasteful number, since it uses less digits than its factorization.

445165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 114 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 445165 is about 667.2068644731. The cubic root of 445165 is about 76.3555020797.

It can be divided in two parts, 44516 and 5, that added together give a square (44521 = 211²).

The spelling of 445165 in words is "four hundred forty-five thousand, one hundred sixty-five".