63245209 has 2 divisors, whose sum is σ = 63245210. Its totient is φ = 63245208.

The previous prime is 63245197. The next prime is 63245213. The reversal of 63245209 is 90254236.

63245209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35366809 + 27878400 = 5947^2 + 5280^2 .

It is a cyclic number.

It is not a de Polignac number, because 63245209 - 2¹³ = 63237017 is a prime.

It is a super-2 number, since 2×63245209² = 7999912922907362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63245249) 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, 31622604 + 31622605.

It is an arithmetic number, because the mean of its divisors is an integer number (31622605).

Almost surely, 2^63245209 is an apocalyptic number.

It is an amenable number.

63245209 is a deficient number, since it is larger than the sum of its proper divisors (1).

63245209 is an equidigital number, since it uses as much as digits as its factorization.

63245209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 63245209 is about 7952.6856470000. The cubic root of 63245209 is about 398.4212961828.

The spelling of 63245209 in words is "sixty-three million, two hundred forty-five thousand, two hundred nine".