42543241 has 8 divisors (see below), whose sum is σ = 45952704. Its totient is φ = 39153360.

The previous prime is 42543187. The next prime is 42543269. The reversal of 42543241 is 14234524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42543241 - 2⁷ = 42543113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42543041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205 + ... + 9226.

It is an arithmetic number, because the mean of its divisors is an integer number (5744088).

Almost surely, 2^42543241 is an apocalyptic number.

It is an amenable number.

42543241 is a deficient number, since it is larger than the sum of its proper divisors (3409463).

42543241 is a wasteful number, since it uses less digits than its factorization.

42543241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791.

The product of its digits is 3840, while the sum is 25.

The square root of 42543241 is about 6522.5179953757. The cubic root of 42543241 is about 349.0949159331.

Adding to 42543241 its reverse (14234524), we get a palindrome (56777765).

The spelling of 42543241 in words is "forty-two million, five hundred forty-three thousand, two hundred forty-one".