20107173 has 8 divisors (see below), whose sum is σ = 26860768. Its totient is φ = 13379184.

The previous prime is 20107163. The next prime is 20107177. The reversal of 20107173 is 37170102.

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

It is not a de Polignac number, because 20107173 - 2⁸ = 20106917 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 (20107177) 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, 4486 + ... + 7767.

It is an arithmetic number, because the mean of its divisors is an integer number (3357596).

Almost surely, 2^20107173 is an apocalyptic number.

It is an amenable number.

20107173 is a deficient number, since it is larger than the sum of its proper divisors (6753595).

20107173 is a wasteful number, since it uses less digits than its factorization.

20107173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12803.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 20107173 is about 4484.1022512873. The cubic root of 20107173 is about 271.9257519734.

Adding to 20107173 its reverse (37170102), we get a palindrome (57277275).

The spelling of 20107173 in words is "twenty million, one hundred seven thousand, one hundred seventy-three".