180012013 has 4 divisors (see below), whose sum is σ = 180059740. Its totient is φ = 179964288.

The previous prime is 180012011. The next prime is 180012029. The reversal of 180012013 is 310210081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310210081 = 4513 ⋅68737.

It can be written as a sum of positive squares in 2 ways, for example, as 35964009 + 144048004 = 5997^2 + 12002^2 .

It is a cyclic number.

It is not a de Polignac number, because 180012013 - 2¹ = 180012011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17670 + ... + 25927.

It is an arithmetic number, because the mean of its divisors is an integer number (45014935).

Almost surely, 2^180012013 is an apocalyptic number.

It is an amenable number.

180012013 is a deficient number, since it is larger than the sum of its proper divisors (47727).

180012013 is an equidigital number, since it uses as much as digits as its factorization.

180012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47726.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 180012013 is about 13416.8555556062. The cubic root of 180012013 is about 564.6341777890.

Adding to 180012013 its reverse (310210081), we get a palindrome (490222094).

The spelling of 180012013 in words is "one hundred eighty million, twelve thousand, thirteen".