12542241 has 4 divisors (see below), whose sum is σ = 16722992. Its totient is φ = 8361492.

The previous prime is 12542237. The next prime is 12542251. The reversal of 12542241 is 14224521.

12542241 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 semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12542241 - 2² = 12542237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2090371 + ... + 2090376.

It is an arithmetic number, because the mean of its divisors is an integer number (4180748).

Almost surely, 2^12542241 is an apocalyptic number.

It is an amenable number.

12542241 is a deficient number, since it is larger than the sum of its proper divisors (4180751).

12542241 is an equidigital number, since it uses as much as digits as its factorization.

12542241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180750.

The product of its digits is 640, while the sum is 21.

The square root of 12542241 is about 3541.5026471824. The cubic root of 12542241 is about 232.3405682331.

Adding to 12542241 its reverse (14224521), we get a palindrome (26766762).

The spelling of 12542241 in words is "twelve million, five hundred forty-two thousand, two hundred forty-one".