42143043 has 16 divisors (see below), whose sum is σ = 58406912. Its totient is φ = 27000000.

The previous prime is 42143029. The next prime is 42143077. The reversal of 42143043 is 34034124.

It is not a de Polignac number, because 42143043 - 2⁴ = 42143027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42143743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12543 + ... + 15543.

It is an arithmetic number, because the mean of its divisors is an integer number (3650432).

Almost surely, 2^42143043 is an apocalyptic number.

42143043 is a deficient number, since it is larger than the sum of its proper divisors (16263869).

42143043 is a wasteful number, since it uses less digits than its factorization.

42143043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 42143043 is about 6491.7673248508. The cubic root of 42143043 is about 347.9968374002.

Adding to 42143043 its reverse (34034124), we get a palindrome (76177167).

The spelling of 42143043 in words is "forty-two million, one hundred forty-three thousand, forty-three".