12080775 has 24 divisors (see below), whose sum is σ = 22827904. Its totient is φ = 5522400.

The previous prime is 12080737. The next prime is 12080779. The reversal of 12080775 is 57708021.

12080775 = 245² + 246² + ... + 370².

It is a happy number.

12080775 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12080775 - 2¹¹ = 12078727 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 (12080779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10981 + ... + 12030.

Almost surely, 2^12080775 is an apocalyptic number.

12080775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12080775 is a deficient number, since it is larger than the sum of its proper divisors (10747129).

12080775 is a wasteful number, since it uses less digits than its factorization.

12080775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23031 (or 23026 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 12080775 is about 3475.7409282051. The cubic root of 12080775 is about 229.4553907249.

Adding to 12080775 its reverse (57708021), we get a palindrome (69788796).

The spelling of 12080775 in words is "twelve million, eighty thousand, seven hundred seventy-five".