20136118 has 4 divisors (see below), whose sum is σ = 30204180. Its totient is φ = 10068058.

The previous prime is 20136089. The next prime is 20136119. The reversal of 20136118 is 81163102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136119) 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 as a sum of consecutive naturals, namely, 5034028 + ... + 5034031.

It is an arithmetic number, because the mean of its divisors is an integer number (7551045).

Almost surely, 2^20136118 is an apocalyptic number.

20136118 is a deficient number, since it is larger than the sum of its proper divisors (10068062).

20136118 is a wasteful number, since it uses less digits than its factorization.

20136118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10068061.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 20136118 is about 4487.3286039692. The cubic root of 20136118 is about 272.0561717179.

The spelling of 20136118 in words is "twenty million, one hundred thirty-six thousand, one hundred eighteen".