12087418 has 12 divisors (see below), whose sum is σ = 21091482. Its totient is φ = 5180280.

The previous prime is 12087409. The next prime is 12087421. The reversal of 12087418 is 81478021.

12087418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7038409 + 5049009 = 2653^2 + 2247^2 .

It is a super-2 number, since 2×12087418² = 292211347813448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12087418.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61573 + ... + 61768.

Almost surely, 2^12087418 is an apocalyptic number.

12087418 is a deficient number, since it is larger than the sum of its proper divisors (9004064).

12087418 is a wasteful number, since it uses less digits than its factorization.

12087418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123357 (or 123350 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 12087418 is about 3476.6964204543. The cubic root of 12087418 is about 229.4974408101.

The spelling of 12087418 in words is "twelve million, eighty-seven thousand, four hundred eighteen".