20994101 has 8 divisors (see below), whose sum is σ = 22374144. Its totient is φ = 19653040.

The previous prime is 20994097. The next prime is 20994109. The reversal of 20994101 is 10149902.

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

It is not a de Polignac number, because 20994101 - 2² = 20994097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20994109) 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, 8630 + ... + 10791.

It is an arithmetic number, because the mean of its divisors is an integer number (2796768).

Almost surely, 2^20994101 is an apocalyptic number.

It is an amenable number.

20994101 is a deficient number, since it is larger than the sum of its proper divisors (1380043).

20994101 is a wasteful number, since it uses less digits than its factorization.

20994101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19491.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 20994101 is about 4581.9320160823. The cubic root of 20994101 is about 275.8665820542.

The spelling of 20994101 in words is "twenty million, nine hundred ninety-four thousand, one hundred one".