20136101 has 4 divisors (see below), whose sum is σ = 20412012. Its totient is φ = 19860192.

The previous prime is 20136089. The next prime is 20136119. The reversal of 20136101 is 10163102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5885476 + 14250625 = 2426^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 20136101 - 2⁶ = 20136037 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 (20136301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137846 + ... + 137991.

It is an arithmetic number, because the mean of its divisors is an integer number (5103003).

Almost surely, 2^20136101 is an apocalyptic number.

It is an amenable number.

20136101 is a deficient number, since it is larger than the sum of its proper divisors (275911).

20136101 is an equidigital number, since it uses as much as digits as its factorization.

20136101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275910.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 20136101 is about 4487.3267097460. The cubic root of 20136101 is about 272.0560951564.

Adding to 20136101 its reverse (10163102), we get a palindrome (30299203).

The spelling of 20136101 in words is "twenty million, one hundred thirty-six thousand, one hundred one".