12440133 has 6 divisors (see below), whose sum is σ = 17969094. Its totient is φ = 8293416.

The previous prime is 12440119. The next prime is 12440137. The reversal of 12440133 is 33104421.

It can be written as a sum of positive squares in only one way, i.e., 8105409 + 4334724 = 2847^2 + 2082^2 .

It is not a de Polignac number, because 12440133 - 2⁸ = 12439877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 691110 + ... + 691127.

It is an arithmetic number, because the mean of its divisors is an integer number (2994849).

Almost surely, 2^12440133 is an apocalyptic number.

It is an amenable number.

12440133 is a deficient number, since it is larger than the sum of its proper divisors (5528961).

12440133 is a wasteful number, since it uses less digits than its factorization.

12440133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382243 (or 1382240 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12440133 is about 3527.0572720045. The cubic root of 12440133 is about 231.7083446112.

Adding to 12440133 its reverse (33104421), we get a palindrome (45544554).

The spelling of 12440133 in words is "twelve million, four hundred forty thousand, one hundred thirty-three".