13064521 has 4 divisors (see below), whose sum is σ = 13106052. Its totient is φ = 13022992.

The previous prime is 13064501. The next prime is 13064539. The reversal of 13064521 is 12546031.

13064521 is digitally balanced in base 2 and base 3, because in such bases 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 an emirpimes, since its reverse is a distinct semiprime: 12546031 = 83 ⋅151157.

It can be written as a sum of positive squares in 2 ways, for example, as 7952400 + 5112121 = 2820^2 + 2261^2 .

It is a cyclic number.

It is not a de Polignac number, because 13064521 - 2⁵ = 13064489 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13064492 and 13064501.

It is not an unprimeable number, because it can be changed into a prime (13064501) 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, 20290 + ... + 20923.

It is an arithmetic number, because the mean of its divisors is an integer number (3276513).

Almost surely, 2^13064521 is an apocalyptic number.

It is an amenable number.

13064521 is a deficient number, since it is larger than the sum of its proper divisors (41531).

13064521 is an equidigital number, since it uses as much as digits as its factorization.

13064521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41530.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13064521 is about 3614.4876538730. The cubic root of 13064521 is about 235.5218281764.

The spelling of 13064521 in words is "thirteen million, sixty-four thousand, five hundred twenty-one".