901000109 has 8 divisors (see below), whose sum is σ = 915425280. Its totient is φ = 886660096.

The previous prime is 901000099. The next prime is 901000123.

901000109 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-901000109 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 (901000129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 42450.

It is an arithmetic number, because the mean of its divisors is an integer number (114428160).

Almost surely, 2^901000109 is an apocalyptic number.

It is an amenable number.

901000109 is a deficient number, since it is larger than the sum of its proper divisors (14425171).

901000109 is a wasteful number, since it uses less digits than its factorization.

901000109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42579.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 901000109 is about 30016.6638552655. The cubic root of 901000109 is about 965.8468798564.

It can be divided in two parts, 901000 and 109, that added together give a palindrome (901109).

The spelling of 901000109 in words is "nine hundred one million, one hundred nine", and thus it is an aban number.