100313909 has 4 divisors (see below), whose sum is σ = 100671180. Its totient is φ = 99956640.

The previous prime is 100313897. The next prime is 100313953. The reversal of 100313909 is 909313001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 909313001 = 19 ⋅47858579.

It can be written as a sum of positive squares in 2 ways, for example, as 51523684 + 48790225 = 7178^2 + 6985^2 .

It is a cyclic number.

It is not a de Polignac number, because 100313909 - 2⁴ = 100313893 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 (100313959) 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 3 ways as a sum of consecutive naturals, for example, 178214 + ... + 178775.

It is an arithmetic number, because the mean of its divisors is an integer number (25167795).

Almost surely, 2^100313909 is an apocalyptic number.

It is an amenable number.

100313909 is a deficient number, since it is larger than the sum of its proper divisors (357271).

100313909 is an equidigital number, since it uses as much as digits as its factorization.

100313909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357270.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 100313909 is about 10015.6831519373. The cubic root of 100313909 is about 464.6440548856.

The spelling of 100313909 in words is "one hundred million, three hundred thirteen thousand, nine hundred nine".