64543345 has 16 divisors (see below), whose sum is σ = 79122240. Its totient is φ = 50529600.

The previous prime is 64543337. The next prime is 64543397. The reversal of 64543345 is 54334546.

It is not a de Polignac number, because 64543345 - 2³ = 64543337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64543345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97315 + ... + 97975.

It is an arithmetic number, because the mean of its divisors is an integer number (4945140).

Almost surely, 2^64543345 is an apocalyptic number.

It is an amenable number.

64543345 is a deficient number, since it is larger than the sum of its proper divisors (14578895).

64543345 is a wasteful number, since it uses less digits than its factorization.

64543345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its digits is 86400, while the sum is 34.

The square root of 64543345 is about 8033.8872907205. The cubic root of 64543345 is about 401.1287803908.

The spelling of 64543345 in words is "sixty-four million, five hundred forty-three thousand, three hundred forty-five".