180243013 has 2 divisors, whose sum is σ = 180243014. Its totient is φ = 180243012.

The previous prime is 180242999. The next prime is 180243029. The reversal of 180243013 is 310342081.

180243013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157803844 + 22439169 = 12562^2 + 4737^2 .

It is a cyclic number.

It is not a de Polignac number, because 180243013 - 2¹⁷ = 180111941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180243043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90121506 + 90121507.

It is an arithmetic number, because the mean of its divisors is an integer number (90121507).

Almost surely, 2^180243013 is an apocalyptic number.

It is an amenable number.

180243013 is a deficient number, since it is larger than the sum of its proper divisors (1).

180243013 is an equidigital number, since it uses as much as digits as its factorization.

180243013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 180243013 is about 13425.4613700982. The cubic root of 180243013 is about 564.8755963867.

Adding to 180243013 its reverse (310342081), we get a palindrome (490585094).

The spelling of 180243013 in words is "one hundred eighty million, two hundred forty-three thousand, thirteen".