64145585 has 16 divisors (see below), whose sum is σ = 88128000. Its totient is φ = 43907136.

The previous prime is 64145579. The next prime is 64145621. The reversal of 64145585 is 58554146.

It is a happy number.

64145585 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64145585 - 2¹² = 64141489 is a prime.

It is a super-2 number, since 2×64145585² = 8229312149984450, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23891 + ... + 26439.

It is an arithmetic number, because the mean of its divisors is an integer number (5508000).

Almost surely, 2^64145585 is an apocalyptic number.

It is an amenable number.

64145585 is a deficient number, since it is larger than the sum of its proper divisors (23982415).

64145585 is a wasteful number, since it uses less digits than its factorization.

64145585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280.

The product of its digits is 96000, while the sum is 38.

The square root of 64145585 is about 8009.0938938185. The cubic root of 64145585 is about 400.3030723931.

The spelling of 64145585 in words is "sixty-four million, one hundred forty-five thousand, five hundred eighty-five".