42943259 has 2 divisors, whose sum is σ = 42943260. Its totient is φ = 42943258.

The previous prime is 42943237. The next prime is 42943279. The reversal of 42943259 is 95234924.

It is a happy number.

42943259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42943259 is a prime.

It is a super-3 number, since 3×42943259³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42943279) 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, 21471629 + 21471630.

It is an arithmetic number, because the mean of its divisors is an integer number (21471630).

Almost surely, 2^42943259 is an apocalyptic number.

42943259 is a deficient number, since it is larger than the sum of its proper divisors (1).

42943259 is an equidigital number, since it uses as much as digits as its factorization.

42943259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 42943259 is about 6553.1106354158. The cubic root of 42943259 is about 350.1856402943.

The spelling of 42943259 in words is "forty-two million, nine hundred forty-three thousand, two hundred fifty-nine".