12118648 has 8 divisors (see below), whose sum is σ = 22722480. Its totient is φ = 6059320.

The previous prime is 12118643. The next prime is 12118651. The reversal of 12118648 is 84681121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118643) 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 as a sum of consecutive naturals, namely, 757408 + ... + 757423.

It is an arithmetic number, because the mean of its divisors is an integer number (2840310).

Almost surely, 2^12118648 is an apocalyptic number.

It is an amenable number.

12118648 is a deficient number, since it is larger than the sum of its proper divisors (10603832).

12118648 is a wasteful number, since it uses less digits than its factorization.

12118648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514837 (or 1514833 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 12118648 is about 3481.1848557639. The cubic root of 12118648 is about 229.6949200219.

Adding to 12118648 its reverse (84681121), we get a palindrome (96799769).

It can be divided in two parts, 121 and 18648, that added together give a square (18769 = 137²).

The spelling of 12118648 in words is "twelve million, one hundred eighteen thousand, six hundred forty-eight".