20094109 has 4 divisors (see below), whose sum is σ = 22964704. Its totient is φ = 17223516.

The previous prime is 20094103. The next prime is 20094127. The reversal of 20094109 is 90149002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20094109 - 2³ = 20094101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20094101) 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 3 ways as a sum of consecutive naturals, for example, 1435287 + ... + 1435300.

It is an arithmetic number, because the mean of its divisors is an integer number (5741176).

Almost surely, 2^20094109 is an apocalyptic number.

It is an amenable number.

20094109 is a deficient number, since it is larger than the sum of its proper divisors (2870595).

20094109 is an equidigital number, since it uses as much as digits as its factorization.

20094109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870594.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 20094109 is about 4482.6453127590. The cubic root of 20094109 is about 271.8668474941.

The spelling of 20094109 in words is "twenty million, ninety-four thousand, one hundred nine".