2091101 has 4 divisors (see below), whose sum is σ = 2110752. Its totient is φ = 2071452.

The previous prime is 2091097. The next prime is 2091139. The reversal of 2091101 is 1011902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2091101 - 2² = 2091097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091151) 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, 9665 + ... + 9878.

It is an arithmetic number, because the mean of its divisors is an integer number (527688).

2^2091101 is an apocalyptic number.

It is an amenable number.

2091101 is a deficient number, since it is larger than the sum of its proper divisors (19651).

2091101 is a wasteful number, since it uses less digits than its factorization.

2091101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 2091101 is about 1446.0639681563. The cubic root of 2091101 is about 127.8767734969.

The spelling of 2091101 in words is "two million, ninety-one thousand, one hundred one".