100005001 has 2 divisors, whose sum is σ = 100005002. Its totient is φ = 100005000.

The previous prime is 100004981. The next prime is 100005023. The reversal of 100005001 is 100500001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99900025 + 104976 = 9995^2 + 324^2 .

It is a cyclic number.

It is not a de Polignac number, because 100005001 - 2¹⁵ = 99972233 is a prime.

It is not a weakly prime, because it can be changed into another prime (100005041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50002500 + 50002501.

It is an arithmetic number, because the mean of its divisors is an integer number (50002501).

Almost surely, 2^100005001 is an apocalyptic number.

It is an amenable number.

100005001 is a deficient number, since it is larger than the sum of its proper divisors (1).

100005001 is an equidigital number, since it uses as much as digits as its factorization.

100005001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 100005001 is about 10000.2500468738. The cubic root of 100005001 is about 464.1666207609.

Adding to 100005001 its reverse (100500001), we get a palindrome (200505002).

The spelling of 100005001 in words is "one hundred million, five thousand, one".