180041509 has 12 divisors (see below), whose sum is σ = 194515200. Its totient is φ = 166563008.

The previous prime is 180041497. The next prime is 180041527. The reversal of 180041509 is 905140081.

It is a happy number.

It is not a de Polignac number, because 180041509 - 2⁹ = 180040997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180041009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11772 + ... + 22330.

It is an arithmetic number, because the mean of its divisors is an integer number (16209600).

Almost surely, 2^180041509 is an apocalyptic number.

It is an amenable number.

180041509 is a deficient number, since it is larger than the sum of its proper divisors (14473691).

180041509 is a wasteful number, since it uses less digits than its factorization.

180041509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10652 (or 10635 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 180041509 is about 13417.9547249199. The cubic root of 180041509 is about 564.6650156201.

The spelling of 180041509 in words is "one hundred eighty million, forty-one thousand, five hundred nine".