100342217 has 2 divisors, whose sum is σ = 100342218. Its totient is φ = 100342216.

The previous prime is 100342199. The next prime is 100342259. The reversal of 100342217 is 712243001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98089216 + 2253001 = 9904^2 + 1501^2 .

It is a cyclic number.

It is not a de Polignac number, because 100342217 - 2²⁶ = 33233353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100342267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50171108 + 50171109.

It is an arithmetic number, because the mean of its divisors is an integer number (50171109).

Almost surely, 2^100342217 is an apocalyptic number.

It is an amenable number.

100342217 is a deficient number, since it is larger than the sum of its proper divisors (1).

100342217 is an equidigital number, since it uses as much as digits as its factorization.

100342217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 100342217 is about 10017.0962359358. The cubic root of 100342217 is about 464.6877573890.

Adding to 100342217 its reverse (712243001), we get a palindrome (812585218).

The spelling of 100342217 in words is "one hundred million, three hundred forty-two thousand, two hundred seventeen".