42524143 has 4 divisors (see below), whose sum is σ = 43428960. Its totient is φ = 41619328.

The previous prime is 42524099. The next prime is 42524159. The reversal of 42524143 is 34142524.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42524143 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42524173) 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, 452338 + ... + 452431.

It is an arithmetic number, because the mean of its divisors is an integer number (10857240).

Almost surely, 2^42524143 is an apocalyptic number.

42524143 is a deficient number, since it is larger than the sum of its proper divisors (904817).

42524143 is an equidigital number, since it uses as much as digits as its factorization.

42524143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904816.

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

The square root of 42524143 is about 6521.0538258781. The cubic root of 42524143 is about 349.0426709511.

Adding to 42524143 its reverse (34142524), we get a palindrome (76666667).

The spelling of 42524143 in words is "forty-two million, five hundred twenty-four thousand, one hundred forty-three".