42143259 has 16 divisors (see below), whose sum is σ = 57941792. Its totient is φ = 27226368.

The previous prime is 42143249. The next prime is 42143263. The reversal of 42143259 is 95234124.

It is not a de Polignac number, because 42143259 - 2¹⁹ = 41618971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42143219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34137 + ... + 35349.

It is an arithmetic number, because the mean of its divisors is an integer number (3621362).

Almost surely, 2^42143259 is an apocalyptic number.

42143259 is a deficient number, since it is larger than the sum of its proper divisors (15798533).

42143259 is a wasteful number, since it uses less digits than its factorization.

42143259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566.

The product of its digits is 8640, while the sum is 30.

The square root of 42143259 is about 6491.7839612852. The cubic root of 42143259 is about 347.9974319404.

The spelling of 42143259 in words is "forty-two million, one hundred forty-three thousand, two hundred fifty-nine".