13568213 has 2 divisors, whose sum is σ = 13568214. Its totient is φ = 13568212.

The previous prime is 13568209. The next prime is 13568221. The reversal of 13568213 is 31286531.

13568213 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 weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13490929 + 77284 = 3673^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 13568213 - 2² = 13568209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13568273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6784106 + 6784107.

It is an arithmetic number, because the mean of its divisors is an integer number (6784107).

Almost surely, 2^13568213 is an apocalyptic number.

It is an amenable number.

13568213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13568213 is an equidigital number, since it uses as much as digits as its factorization.

13568213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 13568213 is about 3683.5055314198. The cubic root of 13568213 is about 238.5105263986.

The spelling of 13568213 in words is "thirteen million, five hundred sixty-eight thousand, two hundred thirteen".