12118777 has 16 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 10637200.

The previous prime is 12118753. The next prime is 12118783. The reversal of 12118777 is 77781121.

It is a cyclic number.

It is not a de Polignac number, because 12118777 - 2¹¹ = 12116729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12118727) 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, 45948 + ... + 46210.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^12118777 is an apocalyptic number.

It is an amenable number.

12118777 is a deficient number, since it is larger than the sum of its proper divisors (1566983).

12118777 is a wasteful number, since it uses less digits than its factorization.

12118777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its digits is 5488, while the sum is 34.

The square root of 12118777 is about 3481.2033838890. The cubic root of 12118777 is about 229.6957350342.

Adding to 12118777 its reverse (77781121), we get a palindrome (89899898).

The spelling of 12118777 in words is "twelve million, one hundred eighteen thousand, seven hundred seventy-seven".