165363 has 8 divisors (see below), whose sum is σ = 240576. Its totient is φ = 100200.

The previous prime is 165349. The next prime is 165367. The reversal of 165363 is 363561.

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

It is not a de Polignac number, because 165363 - 2⁵ = 165331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165367) 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, 2473 + ... + 2538.

It is an arithmetic number, because the mean of its divisors is an integer number (30072).

2¹⁶⁵³⁶³ is an apocalyptic number.

165363 is a deficient number, since it is larger than the sum of its proper divisors (75213).

165363 is a wasteful number, since it uses less digits than its factorization.

165363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025.

The product of its digits is 1620, while the sum is 24.

The square root of 165363 is about 406.6484968618. The cubic root of 165363 is about 54.8882579790. Note that the first 3 decimals are identical.

It can be divided in two parts, 165 and 363, that multiplied together give a palindrome (59895).

The spelling of 165363 in words is "one hundred sixty-five thousand, three hundred sixty-three".