20106071 has 8 divisors (see below), whose sum is σ = 21078144. Its totient is φ = 19142200.

The previous prime is 20106061. The next prime is 20106089. The reversal of 20106071 is 17060102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20106071 - 2⁶ = 20106007 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 (20106001) 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, 3296 + ... + 7146.

It is an arithmetic number, because the mean of its divisors is an integer number (2634768).

Almost surely, 2^20106071 is an apocalyptic number.

20106071 is a deficient number, since it is larger than the sum of its proper divisors (972073).

20106071 is a wasteful number, since it uses less digits than its factorization.

20106071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 20106071 is about 4483.9793710498. The cubic root of 20106071 is about 271.9207841334.

Adding to 20106071 its reverse (17060102), we get a palindrome (37166173).

The spelling of 20106071 in words is "twenty million, one hundred six thousand, seventy-one".