100503863 has 8 divisors (see below), whose sum is σ = 106629120. Its totient is φ = 94462200.

The previous prime is 100503841. The next prime is 100503889. The reversal of 100503863 is 368305001.

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 100503863 - 2¹⁰ = 100502839 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 (100505863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18413 + ... + 23238.

It is an arithmetic number, because the mean of its divisors is an integer number (13328640).

Almost surely, 2^100503863 is an apocalyptic number.

100503863 is a deficient number, since it is larger than the sum of its proper divisors (6125257).

100503863 is a wasteful number, since it uses less digits than its factorization.

100503863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41797.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 100503863 is about 10025.1614949586. The cubic root of 100503863 is about 464.9371526424.

Adding to 100503863 its reverse (368305001), we get a palindrome (468808864).

The spelling of 100503863 in words is "one hundred million, five hundred three thousand, eight hundred sixty-three".