200101909 has 8 divisors (see below), whose sum is σ = 238631040. Its totient is φ = 164058576.

The previous prime is 200101879. The next prime is 200101921. The reversal of 200101909 is 909101002.

200101909 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200101909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200101909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200101309) 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, 621274 + ... + 621595.

It is an arithmetic number, because the mean of its divisors is an integer number (29828880).

Almost surely, 2^200101909 is an apocalyptic number.

It is an amenable number.

200101909 is a deficient number, since it is larger than the sum of its proper divisors (38529131).

200101909 is a wasteful number, since it uses less digits than its factorization.

200101909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242899.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 200101909 is about 14145.7381921199. The cubic root of 200101909 is about 584.9028586846.

The spelling of 200101909 in words is "two hundred million, one hundred one thousand, nine hundred nine".