42106003 has 8 divisors (see below), whose sum is σ = 42517440. Its totient is φ = 41697000.

The previous prime is 42105977. The next prime is 42106013. The reversal of 42106003 is 30060124.

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 42106003 - 2⁹ = 42105491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42106013) 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, 56608 + ... + 57346.

It is an arithmetic number, because the mean of its divisors is an integer number (5314680).

Almost surely, 2^42106003 is an apocalyptic number.

42106003 is a deficient number, since it is larger than the sum of its proper divisors (411437).

42106003 is a wasteful number, since it uses less digits than its factorization.

42106003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217.

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

The square root of 42106003 is about 6488.9138536430. The cubic root of 42106003 is about 347.8948547232.

Adding to 42106003 its reverse (30060124), we get a palindrome (72166127).

The spelling of 42106003 in words is "forty-two million, one hundred six thousand, three".