12241553 has 4 divisors (see below), whose sum is σ = 12248868. Its totient is φ = 12234240.

The previous prime is 12241519. The next prime is 12241571. The reversal of 12241553 is 35514221.

12241553 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35514221 = 67 ⋅530063.

It can be written as a sum of positive squares in 2 ways, for example, as 7006609 + 5234944 = 2647^2 + 2288^2 .

It is a cyclic number.

It is not a de Polignac number, because 12241553 - 2¹² = 12237457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12241583) 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, 233 + ... + 4953.

It is an arithmetic number, because the mean of its divisors is an integer number (3062217).

Almost surely, 2^12241553 is an apocalyptic number.

It is an amenable number.

12241553 is a deficient number, since it is larger than the sum of its proper divisors (7315).

12241553 is an equidigital number, since it uses as much as digits as its factorization.

12241553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314.

The product of its digits is 1200, while the sum is 23.

The square root of 12241553 is about 3498.7930776198. The cubic root of 12241553 is about 230.4688169020.

Adding to 12241553 its reverse (35514221), we get a palindrome (47755774).

The spelling of 12241553 in words is "twelve million, two hundred forty-one thousand, five hundred fifty-three".