42121006 has 8 divisors (see below), whose sum is σ = 63942984. Its totient is φ = 20806680.

The previous prime is 42121003. The next prime is 42121007. The reversal of 42121006 is 60012124.

42121006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42121003) 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, 126705 + ... + 127036.

It is an arithmetic number, because the mean of its divisors is an integer number (7992873).

Almost surely, 2^42121006 is an apocalyptic number.

42121006 is a deficient number, since it is larger than the sum of its proper divisors (21821978).

42121006 is a wasteful number, since it uses less digits than its factorization.

42121006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253826.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 42121006 is about 6490.0697993165. The cubic root of 42121006 is about 347.9361698670.

The spelling of 42121006 in words is "forty-two million, one hundred twenty-one thousand, six".