202009101 has 8 divisors (see below), whose sum is σ = 307823424. Its totient is φ = 115433760.

The previous prime is 202009063. The next prime is 202009109. The reversal of 202009101 is 101900202.

It is a happy number.

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

It is not a de Polignac number, because 202009101 - 2⁶ = 202009037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202009109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4809720 + ... + 4809761.

It is an arithmetic number, because the mean of its divisors is an integer number (38477928).

Almost surely, 2^202009101 is an apocalyptic number.

202009101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202009101 is a deficient number, since it is larger than the sum of its proper divisors (105814323).

202009101 is an equidigital number, since it uses as much as digits as its factorization.

202009101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619491.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 202009101 is about 14212.9905720084. The cubic root of 202009101 is about 586.7552425589.

Adding to 202009101 its reverse (101900202), we get a palindrome (303909303).

The spelling of 202009101 in words is "two hundred two million, nine thousand, one hundred one".