64045313 has 4 divisors (see below), whose sum is σ = 64377348. Its totient is φ = 63713280.

The previous prime is 64045277. The next prime is 64045343. The reversal of 64045313 is 31354046.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12306064 + 51739249 = 3508^2 + 7193^2 .

It is a cyclic number.

It is not a de Polignac number, because 64045313 - 2⁶ = 64045249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64045343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165728 + ... + 166113.

It is an arithmetic number, because the mean of its divisors is an integer number (16094337).

Almost surely, 2^64045313 is an apocalyptic number.

It is an amenable number.

64045313 is a deficient number, since it is larger than the sum of its proper divisors (332035).

64045313 is a wasteful number, since it uses less digits than its factorization.

64045313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332034.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 64045313 is about 8002.8315613913. The cubic root of 64045313 is about 400.0943798127.

Adding to 64045313 its reverse (31354046), we get a palindrome (95399359).

The spelling of 64045313 in words is "sixty-four million, forty-five thousand, three hundred thirteen".