42094143 has 48 divisors (see below), whose sum is σ = 75712000. Its totient is φ = 21943872.

The previous prime is 42094141. The next prime is 42094147. The reversal of 42094143 is 34149024.

42094143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 6488²-1.

It is not a de Polignac number, because 42094143 - 2¹ = 42094141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42094141) 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 in 47 ways as a sum of consecutive naturals, for example, 84108 + ... + 84606.

Almost surely, 2^42094143 is an apocalyptic number.

42094143 is a deficient number, since it is larger than the sum of its proper divisors (33617857).

42094143 is a wasteful number, since it uses less digits than its factorization.

42094143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42094143 is about 6487.9999229346. Note that the first 4 decimals coincide. The cubic root of 42094143 is about 347.8621878021.

The spelling of 42094143 in words is "forty-two million, ninety-four thousand, one hundred forty-three".