64705135 has 16 divisors (see below), whose sum is σ = 86510592. Its totient is φ = 46055200.

The previous prime is 64705133. The next prime is 64705139. The reversal of 64705135 is 53150746.

It is not a de Polignac number, because 64705135 - 2¹ = 64705133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64705097 and 64705106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64705133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9931 + ... + 15100.

It is an arithmetic number, because the mean of its divisors is an integer number (5406912).

Almost surely, 2^64705135 is an apocalyptic number.

64705135 is a deficient number, since it is larger than the sum of its proper divisors (21805457).

64705135 is a wasteful number, since it uses less digits than its factorization.

64705135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25094.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 64705135 is about 8043.9502111836. The cubic root of 64705135 is about 401.4636689008.

The spelling of 64705135 in words is "sixty-four million, seven hundred five thousand, one hundred thirty-five".