12426533 has 4 divisors (see below), whose sum is σ = 14201760. Its totient is φ = 10651308.

The previous prime is 12426523. The next prime is 12426559. The reversal of 12426533 is 33562421.

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 a cyclic number.

It is not a de Polignac number, because 12426533 - 2⁴ = 12426517 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887603 + ... + 887616.

It is an arithmetic number, because the mean of its divisors is an integer number (3550440).

Almost surely, 2^12426533 is an apocalyptic number.

It is an amenable number.

12426533 is a deficient number, since it is larger than the sum of its proper divisors (1775227).

12426533 is an equidigital number, since it uses as much as digits as its factorization.

12426533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775226.

The product of its digits is 4320, while the sum is 26.

The square root of 12426533 is about 3525.1287919734. The cubic root of 12426533 is about 231.6238765289.

Adding to 12426533 its reverse (33562421), we get a palindrome (45988954).

The spelling of 12426533 in words is "twelve million, four hundred twenty-six thousand, five hundred thirty-three".