12241478 has 4 divisors (see below), whose sum is σ = 18362220. Its totient is φ = 6120738.

The previous prime is 12241477. The next prime is 12241483. The reversal of 12241478 is 87414221.

12241478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87414221 = 17 ⋅5142013.

It is a self number, because there is not a number n which added to its sum of digits gives 12241478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12241477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060368 + ... + 3060371.

It is an arithmetic number, because the mean of its divisors is an integer number (4590555).

Almost surely, 2^12241478 is an apocalyptic number.

12241478 is a deficient number, since it is larger than the sum of its proper divisors (6120742).

12241478 is an equidigital number, since it uses as much as digits as its factorization.

12241478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120741.

The product of its digits is 3584, while the sum is 29.

The square root of 12241478 is about 3498.7823596217. The cubic root of 12241478 is about 230.4683462320.

Adding to 12241478 its reverse (87414221), we get a palindrome (99655699).

The spelling of 12241478 in words is "twelve million, two hundred forty-one thousand, four hundred seventy-eight".