330145 has 4 divisors (see below), whose sum is σ = 396180. Its totient is φ = 264112.

The previous prime is 330139. The next prime is 330149. The reversal of 330145 is 541033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541033 = 151 ⋅3583.

It can be written as a sum of positive squares in 2 ways, for example, as 42849 + 287296 = 207^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 330145 - 2⁷ = 330017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (330149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33010 + ... + 33019.

It is an arithmetic number, because the mean of its divisors is an integer number (99045).

2³³⁰¹⁴⁵ is an apocalyptic number.

It is an amenable number.

330145 is a deficient number, since it is larger than the sum of its proper divisors (66035).

330145 is an equidigital number, since it uses as much as digits as its factorization.

330145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66034.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 330145 is about 574.5824570938. The cubic root of 330145 is about 69.1143521450.

Adding to 330145 its reverse (541033), we get a palindrome (871178).

The spelling of 330145 in words is "three hundred thirty thousand, one hundred forty-five".