9100001 has 4 divisors (see below), whose sum is σ = 9134100. Its totient is φ = 9065904.

The previous prime is 9099989. The next prime is 9100009. The reversal of 9100001 is 1000019.

9100001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000019 = 47 ⋅21277.

It can be written as a sum of positive squares in 2 ways, for example, as 3243601 + 5856400 = 1801^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 9100001 - 2¹⁰ = 9098977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9100009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16646 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (2283525).

Almost surely, 2^9100001 is an apocalyptic number.

It is an amenable number.

9100001 is a deficient number, since it is larger than the sum of its proper divisors (34099).

9100001 is a wasteful number, since it uses less digits than its factorization.

9100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34098.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 9100001 is about 3016.6207915481. The cubic root of 9100001 is about 208.7759555138.

It can be divided in two parts, 9 and 100001, that multiplied together give a palindrome (900009).

The spelling of 9100001 in words is "nine million, one hundred thousand, one".