30165 has 8 divisors (see below), whose sum is σ = 48288. Its totient is φ = 16080.

The previous prime is 30161. The next prime is 30169. The reversal of 30165 is 56103.

It is an interprime number because it is at equal distance from previous prime (30161) and next prime (30169).

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

It is not a de Polignac number, because 30165 - 2² = 30161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 2011 = 30165 / (3 + 0 + 1 + 6 + 5).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30161) 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, 991 + ... + 1020.

It is an arithmetic number, because the mean of its divisors is an integer number (6036).

2³⁰¹⁶⁵ is an apocalyptic number.

It is an amenable number.

30165 is a deficient number, since it is larger than the sum of its proper divisors (18123).

30165 is a wasteful number, since it uses less digits than its factorization.

30165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 30165 is about 173.6807415922. The cubic root of 30165 is about 31.1291868692.

Adding to 30165 its reverse (56103), we get a palindrome (86268).

It can be divided in two parts, 30 and 165, that multiplied together give a triangular number (4950 = T₉₉).

The spelling of 30165 in words is "thirty thousand, one hundred sixty-five".