864605135 has 16 divisors (see below), whose sum is σ = 1049815200. Its totient is φ = 683513856.

The previous prime is 864605117. The next prime is 864605143. The reversal of 864605135 is 531506468.

It is a cyclic number.

It is not a de Polignac number, because 864605135 - 2⁸ = 864604879 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 546776 + ... + 548354.

It is an arithmetic number, because the mean of its divisors is an integer number (65613450).

Almost surely, 2^864605135 is an apocalyptic number.

864605135 is a deficient number, since it is larger than the sum of its proper divisors (185210065).

864605135 is a wasteful number, since it uses less digits than its factorization.

864605135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 864605135 is about 29404.1686670445. The cubic root of 864605135 is about 952.6629385329.

The spelling of 864605135 in words is "eight hundred sixty-four million, six hundred five thousand, one hundred thirty-five".