64545 has 16 divisors (see below), whose sum is σ = 111552. Its totient is φ = 31680.

The previous prime is 64513. The next prime is 64553. The reversal of 64545 is 54546.

64545 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 64545 - 2⁵ = 64513 is a prime.

64545 is a lucky number.

It is a nialpdrome in base 16.

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, 30 + ... + 360.

It is an arithmetic number, because the mean of its divisors is an integer number (6972).

2⁶⁴⁵⁴⁵ is an apocalyptic number.

64545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64545 is a deficient number, since it is larger than the sum of its proper divisors (47007).

64545 is a wasteful number, since it uses less digits than its factorization.

64545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its digits is 2400, while the sum is 24.

The square root of 64545 is about 254.0570802005. The cubic root of 64545 is about 40.1132208900.

Subtracting from 64545 its reverse (54546), we obtain a palindrome (9999).

The spelling of 64545 in words is "sixty-four thousand, five hundred forty-five".