13064321 has 2 divisors, whose sum is σ = 13064322. Its totient is φ = 13064320.

The previous prime is 13064291. The next prime is 13064323. The reversal of 13064321 is 12346031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 2436721 = 3260^2 + 1561^2 .

It is a cyclic number.

It is not a de Polignac number, because 13064321 - 2⁶ = 13064257 is a prime.

Together with 13064323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13064293 and 13064302.

It is not a weakly prime, because it can be changed into another prime (13064323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6532160 + 6532161.

It is an arithmetic number, because the mean of its divisors is an integer number (6532161).

Almost surely, 2^13064321 is an apocalyptic number.

It is an amenable number.

13064321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13064321 is an equidigital number, since it uses as much as digits as its factorization.

13064321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 13064321 is about 3614.4599873287. The cubic root of 13064321 is about 235.5206263310.

The spelling of 13064321 in words is "thirteen million, sixty-four thousand, three hundred twenty-one".