180485 has 4 divisors (see below), whose sum is σ = 216588. Its totient is φ = 144384.

The previous prime is 180473. The next prime is 180491. The reversal of 180485 is 584081.

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 45796 + 134689 = 214^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 180485 - 2¹⁰ = 179461 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11 and base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18044 + ... + 18053.

It is an arithmetic number, because the mean of its divisors is an integer number (54147).

2¹⁸⁰⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

180485 is a deficient number, since it is larger than the sum of its proper divisors (36103).

180485 is an equidigital number, since it uses as much as digits as its factorization.

180485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36102.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 180485 is about 424.8352621899. The cubic root of 180485 is about 56.5128276406.

The spelling of 180485 in words is "one hundred eighty thousand, four hundred eighty-five".