100775830 has 32 divisors (see below), whose sum is σ = 193513536. Its totient is φ = 37653504.

The previous prime is 100775819. The next prime is 100775833. The reversal of 100775830 is 38577001.

It is a junction number, because it is equal to n+sod(n) for n = 100775792 and 100775801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100775833) 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 15 ways as a sum of consecutive naturals, for example, 21127 + ... + 25453.

It is an arithmetic number, because the mean of its divisors is an integer number (6047298).

Almost surely, 2^100775830 is an apocalyptic number.

100775830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100775830 is a deficient number, since it is larger than the sum of its proper divisors (92737706).

100775830 is a wasteful number, since it uses less digits than its factorization.

100775830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 100775830 is about 10038.7165514323. The cubic root of 100775830 is about 465.3561537063.

The spelling of 100775830 in words is "one hundred million, seven hundred seventy-five thousand, eight hundred thirty".