180041009 has 2 divisors, whose sum is σ = 180041010. Its totient is φ = 180041008.

The previous prime is 180041003. The next prime is 180041011. The reversal of 180041009 is 900140081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124389409 + 55651600 = 11153^2 + 7460^2 .

It is a cyclic number.

It is not a de Polignac number, because 180041009 - 2¹⁶ = 179975473 is a prime.

Together with 180041011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (180041003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90020504 + 90020505.

It is an arithmetic number, because the mean of its divisors is an integer number (90020505).

Almost surely, 2^180041009 is an apocalyptic number.

It is an amenable number.

180041009 is a deficient number, since it is larger than the sum of its proper divisors (1).

180041009 is an equidigital number, since it uses as much as digits as its factorization.

180041009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 180041009 is about 13417.9360931553. The cubic root of 180041009 is about 564.6644929022.

The spelling of 180041009 in words is "one hundred eighty million, forty-one thousand, nine".