20173101 has 16 divisors (see below), whose sum is σ = 30671424. Its totient is φ = 11683584.

The previous prime is 20173091. The next prime is 20173133. The reversal of 20173101 is 10137102.

It is not a de Polignac number, because 20173101 - 2⁷ = 20172973 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 (20173141) 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 15 ways as a sum of consecutive naturals, for example, 14551 + ... + 15876.

It is an arithmetic number, because the mean of its divisors is an integer number (1916964).

Almost surely, 2^20173101 is an apocalyptic number.

It is an amenable number.

20173101 is a deficient number, since it is larger than the sum of its proper divisors (10498323).

20173101 is a wasteful number, since it uses less digits than its factorization.

20173101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30460.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 20173101 is about 4491.4475394910. The cubic root of 20173101 is about 272.2226271702. Note that the first 3 decimals are identical.

The spelling of 20173101 in words is "twenty million, one hundred seventy-three thousand, one hundred one".