180328505 has 16 divisors (see below), whose sum is σ = 251364864. Its totient is φ = 121625280.

The previous prime is 180328501. The next prime is 180328513. The reversal of 180328505 is 505823081.

It is a happy number.

It is not a de Polignac number, because 180328505 - 2² = 180328501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180328501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40097 + ... + 44366.

It is an arithmetic number, because the mean of its divisors is an integer number (15710304).

Almost surely, 2^180328505 is an apocalyptic number.

It is an amenable number.

180328505 is a deficient number, since it is larger than the sum of its proper divisors (71036359).

180328505 is an equidigital number, since it uses as much as digits as its factorization.

180328505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84536.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 180328505 is about 13428.6449428079. The cubic root of 180328505 is about 564.9648919632.

The spelling of 180328505 in words is "one hundred eighty million, three hundred twenty-eight thousand, five hundred five".