180562 has 4 divisors (see below), whose sum is σ = 270846. Its totient is φ = 90280.

The previous prime is 180547. The next prime is 180563. The reversal of 180562 is 265081.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 151321 + 29241 = 389^2 + 171^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (180563) by changing a digit.

180562 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 45139 + ... + 45142.

2¹⁸⁰⁵⁶² is an apocalyptic number.

180562 is a deficient number, since it is larger than the sum of its proper divisors (90284).

180562 is an equidigital number, since it uses as much as digits as its factorization.

180562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90283.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 180562 is about 424.9258758890. The cubic root of 180562 is about 56.5208631542.

The spelling of 180562 in words is "one hundred eighty thousand, five hundred sixty-two".