42982143 has 4 divisors (see below), whose sum is σ = 57309528. Its totient is φ = 28654760.

The previous prime is 42982141. The next prime is 42982153. The reversal of 42982143 is 34128924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42982143 - 2¹ = 42982141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42982141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7163688 + ... + 7163693.

It is an arithmetic number, because the mean of its divisors is an integer number (14327382).

Almost surely, 2^42982143 is an apocalyptic number.

42982143 is a deficient number, since it is larger than the sum of its proper divisors (14327385).

42982143 is a wasteful number, since it uses less digits than its factorization.

42982143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14327384.

The product of its digits is 13824, while the sum is 33.

The square root of 42982143 is about 6556.0767994281. The cubic root of 42982143 is about 350.2913030610.

It can be divided in two parts, 4298 and 2143, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 42982143 in words is "forty-two million, nine hundred eighty-two thousand, one hundred forty-three".