64605041 has 4 divisors (see below), whose sum is σ = 64621284. Its totient is φ = 64588800.

The previous prime is 64605017. The next prime is 64605089. The reversal of 64605041 is 14050646.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54390625 + 10214416 = 7375^2 + 3196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64605041 is a prime.

It is a super-2 number, since 2×64605041² = 8347622645223362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64605041.

It is not an unprimeable number, because it can be changed into a prime (64605641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2321 + ... + 11601.

It is an arithmetic number, because the mean of its divisors is an integer number (16155321).

It is a Poulet number, since it divides 2^64605040-1.

Almost surely, 2^64605041 is an apocalyptic number.

It is an amenable number.

64605041 is a deficient number, since it is larger than the sum of its proper divisors (16243).

64605041 is an equidigital number, since it uses as much as digits as its factorization.

64605041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 64605041 is about 8037.7261087947. The cubic root of 64605041 is about 401.2565506512.

Adding to 64605041 its reverse (14050646), we get a palindrome (78655687).

The spelling of 64605041 in words is "sixty-four million, six hundred five thousand, forty-one".