12542226 has 16 divisors (see below), whose sum is σ = 26560224. Its totient is φ = 3934784.

The previous prime is 12542191. The next prime is 12542227. The reversal of 12542226 is 62224521.

It is a happy number.

12542226 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12542196 and 12542205.

It is not an unprimeable number, because it can be changed into a prime (12542227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61380 + ... + 61583.

It is an arithmetic number, because the mean of its divisors is an integer number (1660014).

Almost surely, 2^12542226 is an apocalyptic number.

12542226 is an abundant number, since it is smaller than the sum of its proper divisors (14017998).

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

12542226 is a wasteful number, since it uses less digits than its factorization.

12542226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122985.

The product of its digits is 1920, while the sum is 24.

The square root of 12542226 is about 3541.5005294366. The cubic root of 12542226 is about 232.3404756099.

Adding to 12542226 its reverse (62224521), we get a palindrome (74766747).

The spelling of 12542226 in words is "twelve million, five hundred forty-two thousand, two hundred twenty-six".