12440501 has 4 divisors (see below), whose sum is σ = 12496512. Its totient is φ = 12384492.

The previous prime is 12440489. The next prime is 12440513. The reversal of 12440501 is 10504421.

12440501 is digitally balanced in base 3, 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 Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10504421 = 97 ⋅108293.

It is an interprime number because it is at equal distance from previous prime (12440489) and next prime (12440513).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12440501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12440501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440521) 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, 27671 + ... + 28116.

It is an arithmetic number, because the mean of its divisors is an integer number (3124128).

Almost surely, 2^12440501 is an apocalyptic number.

It is an amenable number.

12440501 is a deficient number, since it is larger than the sum of its proper divisors (56011).

12440501 is an equidigital number, since it uses as much as digits as its factorization.

12440501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56010.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12440501 is about 3527.1094397537. The cubic root of 12440501 is about 231.7106293625.

Adding to 12440501 its reverse (10504421), we get a palindrome (22944922).

The spelling of 12440501 in words is "twelve million, four hundred forty thousand, five hundred one".