64201409 has 2 divisors, whose sum is σ = 64201410. Its totient is φ = 64201408.

The previous prime is 64201387. The next prime is 64201439. The reversal of 64201409 is 90410246.

64201409 is digitally balanced in base 2, because in such base 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., 35343025 + 28858384 = 5945^2 + 5372^2 .

It is a cyclic number.

It is not a de Polignac number, because 64201409 - 2⁸ = 64201153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64201439) 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, 32100704 + 32100705.

It is an arithmetic number, because the mean of its divisors is an integer number (32100705).

Almost surely, 2^64201409 is an apocalyptic number.

It is an amenable number.

64201409 is a deficient number, since it is larger than the sum of its proper divisors (1).

64201409 is an equidigital number, since it uses as much as digits as its factorization.

64201409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64201409 is about 8012.5781743456. The cubic root of 64201409 is about 400.4191626865.

The spelling of 64201409 in words is "sixty-four million, two hundred one thousand, four hundred nine".