64845075 has 24 divisors (see below), whose sum is σ = 109709248. Its totient is φ = 33778080.

The previous prime is 64845061. The next prime is 64845083. The reversal of 64845075 is 57054846.

It is not a de Polignac number, because 64845075 - 2¹⁰ = 64844051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6829 + ... + 13278.

Almost surely, 2^64845075 is an apocalyptic number.

64845075 is a deficient number, since it is larger than the sum of its proper divisors (44864173).

64845075 is a wasteful number, since it uses less digits than its factorization.

64845075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20163 (or 20158 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 64845075 is about 8052.6439757387. The cubic root of 64845075 is about 401.7528802234.

The spelling of 64845075 in words is "sixty-four million, eight hundred forty-five thousand, seventy-five".