12242641 has 4 divisors (see below), whose sum is σ = 12541284. Its totient is φ = 11944000.

The previous prime is 12242623. The next prime is 12242651. The reversal of 12242641 is 14624221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 8242641 = 2000^2 + 2871^2 .

It is a cyclic number.

It is not a de Polignac number, because 12242641 - 2²¹ = 10145489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12242621) 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, 149260 + ... + 149341.

It is an arithmetic number, because the mean of its divisors is an integer number (3135321).

Almost surely, 2^12242641 is an apocalyptic number.

It is an amenable number.

12242641 is a deficient number, since it is larger than the sum of its proper divisors (298643).

12242641 is an equidigital number, since it uses as much as digits as its factorization.

12242641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298642.

The product of its digits is 768, while the sum is 22.

The square root of 12242641 is about 3498.9485563523. The cubic root of 12242641 is about 230.4756445391.

Adding to 12242641 its reverse (14624221), we get a palindrome (26866862).

The spelling of 12242641 in words is "twelve million, two hundred forty-two thousand, six hundred forty-one".