12116457 has 6 divisors (see below), whose sum is σ = 17501562. Its totient is φ = 8077632.

The previous prime is 12116453. The next prime is 12116473. The reversal of 12116457 is 75461121.

It is a happy number.

12116457 is a `hidden beast` number, since 1 + 2 + 11 + 645 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7080921 + 5035536 = 2661^2 + 2244^2 .

It is not a de Polignac number, because 12116457 - 2² = 12116453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12116457.

It is not an unprimeable number, because it can be changed into a prime (12116453) 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 5 ways as a sum of consecutive naturals, for example, 673128 + ... + 673145.

It is an arithmetic number, because the mean of its divisors is an integer number (2916927).

Almost surely, 2^12116457 is an apocalyptic number.

It is an amenable number.

12116457 is a deficient number, since it is larger than the sum of its proper divisors (5385105).

12116457 is a wasteful number, since it uses less digits than its factorization.

12116457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346279 (or 1346276 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 12116457 is about 3480.8701498332. The cubic root of 12116457 is about 229.6810765662.

Adding to 12116457 its reverse (75461121), we get a palindrome (87577578).

The spelling of 12116457 in words is "twelve million, one hundred sixteen thousand, four hundred fifty-seven".