20196117 has 12 divisors (see below), whose sum is σ = 29961100. Its totient is φ = 13099968.

The previous prime is 20196109. The next prime is 20196173. The reversal of 20196117 is 71169102.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 2099601 = 4254^2 + 1449^2 .

It is not a de Polignac number, because 20196117 - 2³ = 20196109 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 (20196317) 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 11 ways as a sum of consecutive naturals, for example, 29992 + ... + 30657.

Almost surely, 2^20196117 is an apocalyptic number.

It is an amenable number.

20196117 is a deficient number, since it is larger than the sum of its proper divisors (9764983).

20196117 is a wasteful number, since it uses less digits than its factorization.

20196117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60692 (or 60689 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 20196117 is about 4494.0090120070. The cubic root of 20196117 is about 272.3261163773.

The spelling of 20196117 in words is "twenty million, one hundred ninety-six thousand, one hundred seventeen".