182345 has 4 divisors (see below), whose sum is σ = 218820. Its totient is φ = 145872.

The previous prime is 182341. The next prime is 182353. The reversal of 182345 is 543281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 118336 = 253^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 182345 - 2² = 182341 is a prime.

It is a d-powerful number, because it can be written as 1 + 8 + 3¹¹ + 2¹¹ + 4² + 5⁵ .

It is a Curzon number.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 182345.

It is not an unprimeable number, because it can be changed into a prime (182341) 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, 18230 + ... + 18239.

It is an arithmetic number, because the mean of its divisors is an integer number (54705).

2¹⁸²³⁴⁵ is an apocalyptic number.

It is an amenable number.

182345 is a deficient number, since it is larger than the sum of its proper divisors (36475).

182345 is an equidigital number, since it uses as much as digits as its factorization.

182345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36474.

The product of its digits is 960, while the sum is 23.

The square root of 182345 is about 427.0187349520. The cubic root of 182345 is about 56.7062967686.

The spelling of 182345 in words is "one hundred eighty-two thousand, three hundred forty-five".