180214949 has 2 divisors, whose sum is σ = 180214950. Its totient is φ = 180214948.

The previous prime is 180214921. The next prime is 180214963. The reversal of 180214949 is 949412081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180042724 + 172225 = 13418^2 + 415^2 .

It is an emirp because it is prime and its reverse (949412081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 180214949 - 2¹² = 180210853 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180214049) 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 as a sum of consecutive naturals, namely, 90107474 + 90107475.

It is an arithmetic number, because the mean of its divisors is an integer number (90107475).

Almost surely, 2^180214949 is an apocalyptic number.

It is an amenable number.

180214949 is a deficient number, since it is larger than the sum of its proper divisors (1).

180214949 is an equidigital number, since it uses as much as digits as its factorization.

180214949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 180214949 is about 13424.4161511777. The cubic root of 180214949 is about 564.8462776514.

The spelling of 180214949 in words is "one hundred eighty million, two hundred fourteen thousand, nine hundred forty-nine".