42143603 has 4 divisors (see below), whose sum is σ = 42772680. Its totient is φ = 41514528.

The previous prime is 42143599. The next prime is 42143609. The reversal of 42143603 is 30634124.

It is a happy number.

42143603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42143603 - 2² = 42143599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42143609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314438 + ... + 314571.

It is an arithmetic number, because the mean of its divisors is an integer number (10693170).

Almost surely, 2^42143603 is an apocalyptic number.

42143603 is a deficient number, since it is larger than the sum of its proper divisors (629077).

42143603 is an equidigital number, since it uses as much as digits as its factorization.

42143603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629076.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 42143603 is about 6491.8104562595. The cubic root of 42143603 is about 347.9983787963.

Adding to 42143603 its reverse (30634124), we get a palindrome (72777727).

The spelling of 42143603 in words is "forty-two million, one hundred forty-three thousand, six hundred three".