12651018 has 16 divisors (see below), whose sum is σ = 26174880. Its totient is φ = 4071536.

The previous prime is 12650999. The next prime is 12651019. The reversal of 12651018 is 81015621.

It is a super-3 number, since 3×12651018³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12651019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36180 + ... + 36527.

It is an arithmetic number, because the mean of its divisors is an integer number (1635930).

Almost surely, 2^12651018 is an apocalyptic number.

12651018 is an abundant number, since it is smaller than the sum of its proper divisors (13523862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12651018 is a wasteful number, since it uses less digits than its factorization.

12651018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72741.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12651018 is about 3556.8269567130. The cubic root of 12651018 is about 233.0103208479.

Adding to 12651018 its reverse (81015621), we get a palindrome (93666639).

The spelling of 12651018 in words is "twelve million, six hundred fifty-one thousand, eighteen".