42930143 has 2 divisors, whose sum is σ = 42930144. Its totient is φ = 42930142.

The previous prime is 42930137. The next prime is 42930161. The reversal of 42930143 is 34103924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42930143 - 2⁴ = 42930127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42930103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21465071 + 21465072.

It is an arithmetic number, because the mean of its divisors is an integer number (21465072).

Almost surely, 2^42930143 is an apocalyptic number.

42930143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42930143 is an equidigital number, since it uses as much as digits as its factorization.

42930143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 42930143 is about 6552.1098128771. The cubic root of 42930143 is about 350.1499846978.

The spelling of 42930143 in words is "forty-two million, nine hundred thirty thousand, one hundred forty-three".