64541317 has 4 divisors (see below), whose sum is σ = 64937440. Its totient is φ = 64145196.

The previous prime is 64541311. The next prime is 64541369. The reversal of 64541317 is 71314546.

64541317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64541317 - 2²³ = 56152709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64541311) 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 in 3 ways as a sum of consecutive naturals, for example, 197817 + ... + 198142.

It is an arithmetic number, because the mean of its divisors is an integer number (16234360).

Almost surely, 2^64541317 is an apocalyptic number.

It is an amenable number.

64541317 is a deficient number, since it is larger than the sum of its proper divisors (396123).

64541317 is a wasteful number, since it uses less digits than its factorization.

64541317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396122.

The product of its digits is 10080, while the sum is 31.

The square root of 64541317 is about 8033.7610743661. The cubic root of 64541317 is about 401.1245790917.

The spelling of 64541317 in words is "sixty-four million, five hundred forty-one thousand, three hundred seventeen".