64942043 has 2 divisors, whose sum is σ = 64942044. Its totient is φ = 64942042.

The previous prime is 64942037. The next prime is 64942063. The reversal of 64942043 is 34024946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64942043 - 2⁴ = 64942027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (64942063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32471021 + 32471022.

It is an arithmetic number, because the mean of its divisors is an integer number (32471022).

Almost surely, 2^64942043 is an apocalyptic number.

64942043 is a deficient number, since it is larger than the sum of its proper divisors (1).

64942043 is an equidigital number, since it uses as much as digits as its factorization.

64942043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 64942043 is about 8058.6626061649. The cubic root of 64942043 is about 401.9530381681.

Adding to 64942043 its reverse (34024946), we get a palindrome (98966989).

The spelling of 64942043 in words is "sixty-four million, nine hundred forty-two thousand, forty-three".