12480218 has 4 divisors (see below), whose sum is σ = 18720330. Its totient is φ = 6240108.

The previous prime is 12480217. The next prime is 12480229. The reversal of 12480218 is 81208421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81208421 = 7 ⋅11601203.

It can be written as a sum of positive squares in only one way, i.e., 9878449 + 2601769 = 3143^2 + 1613^2 .

It is not an unprimeable number, because it can be changed into a prime (12480217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3120053 + ... + 3120056.

Almost surely, 2^12480218 is an apocalyptic number.

12480218 is a deficient number, since it is larger than the sum of its proper divisors (6240112).

12480218 is an equidigital number, since it uses as much as digits as its factorization.

12480218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240111.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12480218 is about 3532.7352009456. The cubic root of 12480218 is about 231.9569504943.

Adding to 12480218 its reverse (81208421), we get a palindrome (93688639).

The spelling of 12480218 in words is "twelve million, four hundred eighty thousand, two hundred eighteen".