13484221 has 2 divisors, whose sum is σ = 13484222. Its totient is φ = 13484220.

The previous prime is 13484201. The next prime is 13484231. The reversal of 13484221 is 12248431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 881721 = 3550^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 13484221 - 2⁵ = 13484189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13484201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6742110 + 6742111.

It is an arithmetic number, because the mean of its divisors is an integer number (6742111).

Almost surely, 2^13484221 is an apocalyptic number.

It is an amenable number.

13484221 is a deficient number, since it is larger than the sum of its proper divisors (1).

13484221 is an equidigital number, since it uses as much as digits as its factorization.

13484221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

The square root of 13484221 is about 3672.0867364484. The cubic root of 13484221 is about 238.0173527352.

The spelling of 13484221 in words is "thirteen million, four hundred eighty-four thousand, two hundred twenty-one".