12080277 has 18 divisors (see below), whose sum is σ = 19181526. Its totient is φ = 7320720.

The previous prime is 12080273. The next prime is 12080287. The reversal of 12080277 is 77208021.

It can be written as a sum of positive squares in only one way, i.e., 11553201 + 527076 = 3399^2 + 726^2 .

It is not a de Polignac number, because 12080277 - 2² = 12080273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12080277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12080273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4458 + ... + 6635.

Almost surely, 2^12080277 is an apocalyptic number.

It is an amenable number.

12080277 is a deficient number, since it is larger than the sum of its proper divisors (7101249).

12080277 is a wasteful number, since it uses less digits than its factorization.

12080277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11121 (or 11107 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 12080277 is about 3475.6692880652. The cubic root of 12080277 is about 229.4522377717.

Adding to 12080277 its reverse (77208021), we get a palindrome (89288298).

The spelling of 12080277 in words is "twelve million, eighty thousand, two hundred seventy-seven".