12442511 has 8 divisors (see below), whose sum is σ = 13200000. Its totient is φ = 11695320.

The previous prime is 12442429. The next prime is 12442513. The reversal of 12442511 is 11524421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12442511 - 2¹⁸ = 12180367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (1650000).

Almost surely, 2^12442511 is an apocalyptic number.

12442511 is a deficient number, since it is larger than the sum of its proper divisors (757489).

12442511 is a wasteful number, since it uses less digits than its factorization.

12442511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149.

The product of its digits is 320, while the sum is 20.

The square root of 12442511 is about 3527.3943641164. The cubic root of 12442511 is about 231.7231077796.

Adding to 12442511 its reverse (11524421), we get a palindrome (23966932).

The spelling of 12442511 in words is "twelve million, four hundred forty-two thousand, five hundred eleven".