20654103 has 24 divisors (see below), whose sum is σ = 29175552. Its totient is φ = 12989664.

The previous prime is 20654077. The next prime is 20654107. The reversal of 20654103 is 30145602.

It is a happy number.

It is not a de Polignac number, because 20654103 - 2⁸ = 20653847 is a prime.

20654103 is a Rhonda number in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20654103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20654107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192976 + ... + 193082.

It is an arithmetic number, because the mean of its divisors is an integer number (1215648).

Almost surely, 2^20654103 is an apocalyptic number.

20654103 is a deficient number, since it is larger than the sum of its proper divisors (8521449).

20654103 is a wasteful number, since it uses less digits than its factorization.

20654103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20654103 is about 4544.6785364864. The cubic root of 20654103 is about 274.3692563524.

Adding to 20654103 its reverse (30145602), we get a palindrome (50799705).

The spelling of 20654103 in words is "twenty million, six hundred fifty-four thousand, one hundred three".