20105014 has 4 divisors (see below), whose sum is σ = 30157524. Its totient is φ = 10052506.

The previous prime is 20105009. The next prime is 20105039. The reversal of 20105014 is 41050102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20104985 and 20105003.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5026252 + ... + 5026255.

It is an arithmetic number, because the mean of its divisors is an integer number (7539381).

Almost surely, 2^20105014 is an apocalyptic number.

20105014 is a deficient number, since it is larger than the sum of its proper divisors (10052510).

20105014 is a wasteful number, since it uses less digits than its factorization.

20105014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052509.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 20105014 is about 4483.8615054437. The cubic root of 20105014 is about 271.9160189838.

Adding to 20105014 its reverse (41050102), we get a palindrome (61155116).

The spelling of 20105014 in words is "twenty million, one hundred five thousand, fourteen".