13264021 has 4 divisors (see below), whose sum is σ = 13432000. Its totient is φ = 13096044.

The previous prime is 13264003. The next prime is 13264037. The reversal of 13264021 is 12046231.

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 13264021 - 2¹³ = 13255829 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 13264021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13264051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83871 + ... + 84028.

It is an arithmetic number, because the mean of its divisors is an integer number (3358000).

Almost surely, 2^13264021 is an apocalyptic number.

It is an amenable number.

13264021 is a deficient number, since it is larger than the sum of its proper divisors (167979).

13264021 is an equidigital number, since it uses as much as digits as its factorization.

13264021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167978.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13264021 is about 3641.9803678768. The cubic root of 13264021 is about 236.7146119443.

The spelling of 13264021 in words is "thirteen million, two hundred sixty-four thousand, twenty-one".