42135009 has 8 divisors (see below), whose sum is σ = 64205760. Its totient is φ = 24077136.

The previous prime is 42134987. The next prime is 42135013. The reversal of 42135009 is 90053124.

42135009 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 not a de Polignac number, because 42135009 - 2⁵ = 42134977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42135009.

It is not an unprimeable number, because it can be changed into a prime (42135109) 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 7 ways as a sum of consecutive naturals, for example, 1003194 + ... + 1003235.

It is an arithmetic number, because the mean of its divisors is an integer number (8025720).

Almost surely, 2^42135009 is an apocalyptic number.

It is an amenable number.

42135009 is a deficient number, since it is larger than the sum of its proper divisors (22070751).

42135009 is a wasteful number, since it uses less digits than its factorization.

42135009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006439.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 42135009 is about 6491.1485116272. The cubic root of 42135009 is about 347.9747223679.

The spelling of 42135009 in words is "forty-two million, one hundred thirty-five thousand, nine".