12441551 has 12 divisors (see below), whose sum is σ = 13471080. Its totient is φ = 11476080.

The previous prime is 12441547. The next prime is 12441553. The reversal of 12441551 is 15514421.

It is not a de Polignac number, because 12441551 - 2² = 12441547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12441553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14936 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (1122590).

Almost surely, 2^12441551 is an apocalyptic number.

12441551 is a deficient number, since it is larger than the sum of its proper divisors (1029529).

12441551 is an equidigital number, since it uses as much as digits as its factorization.

12441551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 863 counting only the distinct ones).

The product of its digits is 800, while the sum is 23.

The square root of 12441551 is about 3527.2582837099. The cubic root of 12441551 is about 231.7171481063.

Adding to 12441551 its reverse (15514421), we get a palindrome (27955972).

The spelling of 12441551 in words is "twelve million, four hundred forty-one thousand, five hundred fifty-one".