12054818 has 4 divisors (see below), whose sum is σ = 18082230. Its totient is φ = 6027408.

The previous prime is 12054803. The next prime is 12054839. The reversal of 12054818 is 81845021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81845021 = 17 ⋅4814413.

It can be written as a sum of positive squares in only one way, i.e., 10029889 + 2024929 = 3167^2 + 1423^2 .

It is an unprimeable number.

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, 3013703 + ... + 3013706.

Almost surely, 2^12054818 is an apocalyptic number.

12054818 is a deficient number, since it is larger than the sum of its proper divisors (6027412).

12054818 is an equidigital number, since it uses as much as digits as its factorization.

12054818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6027411.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 12054818 is about 3472.0048963099. The cubic root of 12054818 is about 229.2909353710.

Adding to 12054818 its reverse (81845021), we get a palindrome (93899839).

The spelling of 12054818 in words is "twelve million, fifty-four thousand, eight hundred eighteen".