19620103 has 16 divisors (see below), whose sum is σ = 21381120. Its totient is φ = 17944416.

The previous prime is 19620059. The next prime is 19620113. The reversal of 19620103 is 30102691.

It is a cyclic number.

It is not a de Polignac number, because 19620103 - 2⁹ = 19619591 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 (19620113) 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 in 15 ways as a sum of consecutive naturals, for example, 113325 + ... + 113497.

It is an arithmetic number, because the mean of its divisors is an integer number (1336320).

Almost surely, 2^19620103 is an apocalyptic number.

19620103 is a deficient number, since it is larger than the sum of its proper divisors (1761017).

19620103 is a wasteful number, since it uses less digits than its factorization.

19620103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 19620103 is about 4429.4585447885. The cubic root of 19620103 is about 269.7120982398.

Adding to 19620103 its reverse (30102691), we get a palindrome (49722794).

The spelling of 19620103 in words is "nineteen million, six hundred twenty thousand, one hundred three".