65117449 has 2 divisors, whose sum is σ = 65117450. Its totient is φ = 65117448.

The previous prime is 65117417. The next prime is 65117483. The reversal of 65117449 is 94471156.

65117449 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., 43560000 + 21557449 = 6600^2 + 4643^2 .

It is a cyclic number.

It is not a de Polignac number, because 65117449 - 2⁵ = 65117417 is a prime.

It is not a weakly prime, because it can be changed into another prime (65117489) 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, 32558724 + 32558725.

It is an arithmetic number, because the mean of its divisors is an integer number (32558725).

Almost surely, 2^65117449 is an apocalyptic number.

It is an amenable number.

65117449 is a deficient number, since it is larger than the sum of its proper divisors (1).

65117449 is an equidigital number, since it uses as much as digits as its factorization.

65117449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 65117449 is about 8069.5383387155. The cubic root of 65117449 is about 402.3145994893.

The spelling of 65117449 in words is "sixty-five million, one hundred seventeen thousand, four hundred forty-nine".