64518043 has 8 divisors (see below), whose sum is σ = 68774400. Its totient is φ = 60312960.

The previous prime is 64518031. The next prime is 64518049. The reversal of 64518043 is 34081546.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64518043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64517996 and 64518014.

It is not an unprimeable number, because it can be changed into a prime (64518049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10203 + ... + 15268.

It is an arithmetic number, because the mean of its divisors is an integer number (8596800).

Almost surely, 2^64518043 is an apocalyptic number.

64518043 is a deficient number, since it is larger than the sum of its proper divisors (4256357).

64518043 is a wasteful number, since it uses less digits than its factorization.

64518043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25637.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 64518043 is about 8032.3124316725. The cubic root of 64518043 is about 401.0763572895.

Adding to 64518043 its reverse (34081546), we get a palindrome (98599589).

The spelling of 64518043 in words is "sixty-four million, five hundred eighteen thousand, forty-three".