64701513 has 12 divisors (see below), whose sum is σ = 93944500. Its totient is φ = 42910848.

The previous prime is 64701503. The next prime is 64701529. The reversal of 64701513 is 31510746.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

64701513 is a `hidden beast` number, since 647 + 0 + 1 + 5 + 13 = 666.

64701513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11664 + 64689849 = 108^2 + 8043^2 .

It is not a de Polignac number, because 64701513 - 2¹⁸ = 64439369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64701503) 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 11 ways as a sum of consecutive naturals, for example, 335145 + ... + 335337.

Almost surely, 2^64701513 is an apocalyptic number.

It is an amenable number.

64701513 is a deficient number, since it is larger than the sum of its proper divisors (29242987).

64701513 is an frugal number, since it uses more digits than its factorization.

64701513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 64701513 is about 8043.7250698914. The cubic root of 64701513 is about 401.4561778490.

The spelling of 64701513 in words is "sixty-four million, seven hundred one thousand, five hundred thirteen".