42548143 has 4 divisors (see below), whose sum is σ = 46416168. Its totient is φ = 38680120.

The previous prime is 42548117. The next prime is 42548147. The reversal of 42548143 is 34184524.

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 42548143 - 2⁵ = 42548111 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42548147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933996 + ... + 1934017.

It is an arithmetic number, because the mean of its divisors is an integer number (11604042).

Almost surely, 2^42548143 is an apocalyptic number.

42548143 is a deficient number, since it is larger than the sum of its proper divisors (3868025).

42548143 is a wasteful number, since it uses less digits than its factorization.

42548143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3868024.

The product of its digits is 15360, while the sum is 31.

The square root of 42548143 is about 6522.8937596745. The cubic root of 42548143 is about 349.1083234491.

It can be divided in two parts, 425481 and 43, that added together give a palindrome (425524).

The spelling of 42548143 in words is "forty-two million, five hundred forty-eight thousand, one hundred forty-three".