13064581 has 4 divisors (see below), whose sum is σ = 13074592. Its totient is φ = 13054572.

The previous prime is 13064567. The next prime is 13064627. The reversal of 13064581 is 18546031.

13064581 is digitally balanced in base 2, 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13064581 - 2⁷ = 13064453 is a prime.

It is a super-2 number, since 2×13064581² = 341366553411122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 2691 + ... + 5776.

It is an arithmetic number, because the mean of its divisors is an integer number (3268648).

Almost surely, 2^13064581 is an apocalyptic number.

It is an amenable number.

13064581 is a deficient number, since it is larger than the sum of its proper divisors (10011).

13064581 is an equidigital number, since it uses as much as digits as its factorization.

13064581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 13064581 is about 3614.4959537949. The cubic root of 13064581 is about 235.5221887277.

The spelling of 13064581 in words is "thirteen million, sixty-four thousand, five hundred eighty-one".