64438541 has 2 divisors, whose sum is σ = 64438542. Its totient is φ = 64438540.

The previous prime is 64438529. The next prime is 64438573. The reversal of 64438541 is 14583446.

64438541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52258441 + 12180100 = 7229^2 + 3490^2 .

It is a cyclic number.

It is not a de Polignac number, because 64438541 - 2¹⁴ = 64422157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64438501) 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 as a sum of consecutive naturals, namely, 32219270 + 32219271.

It is an arithmetic number, because the mean of its divisors is an integer number (32219271).

Almost surely, 2^64438541 is an apocalyptic number.

It is an amenable number.

64438541 is a deficient number, since it is larger than the sum of its proper divisors (1).

64438541 is an equidigital number, since it uses as much as digits as its factorization.

64438541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 35.

The square root of 64438541 is about 8027.3620199914. The cubic root of 64438541 is about 400.9115482050.

The spelling of 64438541 in words is "sixty-four million, four hundred thirty-eight thousand, five hundred forty-one".