100134817 has 4 divisors (see below), whose sum is σ = 100167300. Its totient is φ = 100102336.

The previous prime is 100134809. The next prime is 100134821. The reversal of 100134817 is 718431001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11943936 + 88190881 = 3456^2 + 9391^2 .

It is a cyclic number.

It is not a de Polignac number, because 100134817 - 2³ = 100134809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100134791 and 100134800.

It is not an unprimeable number, because it can be changed into a prime (100134877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11068 + ... + 17965.

It is an arithmetic number, because the mean of its divisors is an integer number (25041825).

Almost surely, 2^100134817 is an apocalyptic number.

It is an amenable number.

100134817 is a deficient number, since it is larger than the sum of its proper divisors (32483).

100134817 is an equidigital number, since it uses as much as digits as its factorization.

100134817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32482.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 100134817 is about 10006.7385795773. The cubic root of 100134817 is about 464.3673780545.

Adding to 100134817 its reverse (718431001), we get a palindrome (818565818).

The spelling of 100134817 in words is "one hundred million, one hundred thirty-four thousand, eight hundred seventeen".