100730863 has 4 divisors (see below), whose sum is σ = 100761408. Its totient is φ = 100700320.

The previous prime is 100730849. The next prime is 100730921. The reversal of 100730863 is 368037001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368037001 = 3209 ⋅114689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100730863 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 (100730813) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9631 + ... + 17152.

It is an arithmetic number, because the mean of its divisors is an integer number (25190352).

Almost surely, 2^100730863 is an apocalyptic number.

100730863 is a deficient number, since it is larger than the sum of its proper divisors (30545).

100730863 is an equidigital number, since it uses as much as digits as its factorization.

100730863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30544.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 100730863 is about 10036.4766227995. The cubic root of 100730863 is about 465.2869281676.

Adding to 100730863 its reverse (368037001), we get a palindrome (468767864).

The spelling of 100730863 in words is "one hundred million, seven hundred thirty thousand, eight hundred sixty-three".