100812017 has 2 divisors, whose sum is σ = 100812018. Its totient is φ = 100812016.

The previous prime is 100812011. The next prime is 100812053. The reversal of 100812017 is 710218001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78872161 + 21939856 = 8881^2 + 4684^2 .

It is a cyclic number.

It is not a de Polignac number, because 100812017 - 2¹⁰ = 100810993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100812017.

It is not a weakly prime, because it can be changed into another prime (100812011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50406008 + 50406009.

It is an arithmetic number, because the mean of its divisors is an integer number (50406009).

Almost surely, 2^100812017 is an apocalyptic number.

It is an amenable number.

100812017 is a deficient number, since it is larger than the sum of its proper divisors (1).

100812017 is an equidigital number, since it uses as much as digits as its factorization.

100812017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 100812017 is about 10040.5187614983. The cubic root of 100812017 is about 465.4118477085.

The spelling of 100812017 in words is "one hundred million, eight hundred twelve thousand, seventeen".