64543041 has 24 divisors (see below), whose sum is σ = 97064160. Its totient is φ = 42387768.

The previous prime is 64543021. The next prime is 64543049. The reversal of 64543041 is 14034546.

64543041 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 64543041 - 2⁶ = 64542977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 64542996 and 64543014.

It is not an unprimeable number, because it can be changed into a prime (64543049) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 185830 + ... + 186176.

It is an arithmetic number, because the mean of its divisors is an integer number (4044340).

Almost surely, 2^64543041 is an apocalyptic number.

It is an amenable number.

64543041 is a deficient number, since it is larger than the sum of its proper divisors (32521119).

64543041 is an equidigital number, since it uses as much as digits as its factorization.

64543041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 64543041 is about 8033.8683708410. The cubic root of 64543041 is about 401.1281506158.

Adding to 64543041 its reverse (14034546), we get a palindrome (78577587).

The spelling of 64543041 in words is "sixty-four million, five hundred forty-three thousand, forty-one".