180243029 has 2 divisors, whose sum is σ = 180243030. Its totient is φ = 180243028.

The previous prime is 180243013. The next prime is 180243043. The reversal of 180243029 is 920342081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93566929 + 86676100 = 9673^2 + 9310^2 .

It is an emirp because it is prime and its reverse (920342081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180243029 - 2⁴ = 180243013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 180242992 and 180243010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180243629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90121514 + 90121515.

It is an arithmetic number, because the mean of its divisors is an integer number (90121515).

Almost surely, 2^180243029 is an apocalyptic number.

It is an amenable number.

180243029 is a deficient number, since it is larger than the sum of its proper divisors (1).

180243029 is an equidigital number, since it uses as much as digits as its factorization.

180243029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 180243029 is about 13425.4619659809. The cubic root of 180243029 is about 564.8756131012.

The spelling of 180243029 in words is "one hundred eighty million, two hundred forty-three thousand, twenty-nine".