180327869 has 2 divisors, whose sum is σ = 180327870. Its totient is φ = 180327868.

The previous prime is 180327817. The next prime is 180327877. The reversal of 180327869 is 968723081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157879225 + 22448644 = 12565^2 + 4738^2 .

It is a cyclic number.

It is not a de Polignac number, because 180327869 - 2¹⁶ = 180262333 is a prime.

It is a super-2 number, since 2×180327869² = 65036280676162322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180327269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90163934 + 90163935.

It is an arithmetic number, because the mean of its divisors is an integer number (90163935).

Almost surely, 2^180327869 is an apocalyptic number.

It is an amenable number.

180327869 is a deficient number, since it is larger than the sum of its proper divisors (1).

180327869 is an equidigital number, since it uses as much as digits as its factorization.

180327869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 180327869 is about 13428.6212620656. The cubic root of 180327869 is about 564.9642277715.

The spelling of 180327869 in words is "one hundred eighty million, three hundred twenty-seven thousand, eight hundred sixty-nine".