12080505 has 16 divisors (see below), whose sum is σ = 19381824. Its totient is φ = 6425280.

The previous prime is 12080503. The next prime is 12080513. The reversal of 12080505 is 50508021.

It is not a de Polignac number, because 12080505 - 2¹ = 12080503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12080503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6042 + ... + 7788.

It is an arithmetic number, because the mean of its divisors is an integer number (1211364).

Almost surely, 2^12080505 is an apocalyptic number.

12080505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12080505 is a deficient number, since it is larger than the sum of its proper divisors (7301319).

12080505 is a wasteful number, since it uses less digits than its factorization.

12080505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 12080505 is about 3475.7020873487. The cubic root of 12080505 is about 229.4536813032.

Adding to 12080505 its reverse (50508021), we get a palindrome (62588526).

The spelling of 12080505 in words is "twelve million, eighty thousand, five hundred five".