42006103 has 4 divisors (see below), whose sum is σ = 42022888. Its totient is φ = 41989320.

The previous prime is 42006089. The next prime is 42006127. The reversal of 42006103 is 30160024.

42006103 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 42006103 - 2⁹ = 42005591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42006143) 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, 3801 + ... + 9922.

It is an arithmetic number, because the mean of its divisors is an integer number (10505722).

Almost surely, 2^42006103 is an apocalyptic number.

42006103 is a deficient number, since it is larger than the sum of its proper divisors (16785).

42006103 is a wasteful number, since it uses less digits than its factorization.

42006103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16784.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 42006103 is about 6481.2115379765. The cubic root of 42006103 is about 347.6195003324.

Adding to 42006103 its reverse (30160024), we get a palindrome (72166127).

The spelling of 42006103 in words is "forty-two million, six thousand, one hundred three".