12426501 has 4 divisors (see below), whose sum is σ = 16568672. Its totient is φ = 8284332.

The previous prime is 12426499. The next prime is 12426503. The reversal of 12426501 is 10562421.

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.

It is an interprime number because it is at equal distance from previous prime (12426499) and next prime (12426503).

It is not a de Polignac number, because 12426501 - 2¹ = 12426499 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 (12426503) 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 3 ways as a sum of consecutive naturals, for example, 2071081 + ... + 2071086.

It is an arithmetic number, because the mean of its divisors is an integer number (4142168).

Almost surely, 2^12426501 is an apocalyptic number.

It is an amenable number.

12426501 is a deficient number, since it is larger than the sum of its proper divisors (4142171).

12426501 is an equidigital number, since it uses as much as digits as its factorization.

12426501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142170.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12426501 is about 3525.1242531292. The cubic root of 12426501 is about 231.6236777078.

Adding to 12426501 its reverse (10562421), we get a palindrome (22988922).

The spelling of 12426501 in words is "twelve million, four hundred twenty-six thousand, five hundred one".