180385229 has 2 divisors, whose sum is σ = 180385230. Its totient is φ = 180385228.

The previous prime is 180385223. The next prime is 180385241. The reversal of 180385229 is 922583081.

180385229 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., 122655625 + 57729604 = 11075^2 + 7598^2 .

It is a cyclic number.

It is not a de Polignac number, because 180385229 - 2¹⁶ = 180319693 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 180385192 and 180385201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180385223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90192614 + 90192615.

It is an arithmetic number, because the mean of its divisors is an integer number (90192615).

Almost surely, 2^180385229 is an apocalyptic number.

It is an amenable number.

180385229 is a deficient number, since it is larger than the sum of its proper divisors (1).

180385229 is an equidigital number, since it uses as much as digits as its factorization.

180385229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 180385229 is about 13430.7568290100. The cubic root of 180385229 is about 565.0241240646.

The spelling of 180385229 in words is "one hundred eighty million, three hundred eighty-five thousand, two hundred twenty-nine".