64945041 has 24 divisors (see below), whose sum is σ = 101697120. Its totient is φ = 36755712.

The previous prime is 64945033. The next prime is 64945057. The reversal of 64945041 is 14054946.

It is not a de Polignac number, because 64945041 - 2³ = 64945033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64944993 and 64945011.

It is not an unprimeable number, because it can be changed into a prime (64943041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13665 + ... + 17793.

It is an arithmetic number, because the mean of its divisors is an integer number (4237380).

Almost surely, 2^64945041 is an apocalyptic number.

It is an amenable number.

64945041 is a deficient number, since it is larger than the sum of its proper divisors (36752079).

64945041 is a wasteful number, since it uses less digits than its factorization.

64945041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 64945041 is about 8058.8486150318. The cubic root of 64945041 is about 401.9592233584.

Adding to 64945041 its reverse (14054946), we get a palindrome (78999987).

The spelling of 64945041 in words is "sixty-four million, nine hundred forty-five thousand, forty-one".