2010091 has 4 divisors (see below), whose sum is σ = 2018952. Its totient is φ = 2001232.

The previous prime is 2010089. The next prime is 2010103. The reversal of 2010091 is 1900102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2010091 - 2¹ = 2010089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010031) 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, 4081 + ... + 4546.

It is an arithmetic number, because the mean of its divisors is an integer number (504738).

2^2010091 is an apocalyptic number.

2010091 is a deficient number, since it is larger than the sum of its proper divisors (8861).

2010091 is an equidigital number, since it uses as much as digits as its factorization.

2010091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8860.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2010091 is about 1417.7767807381. The cubic root of 2010091 is about 126.2036473303.

Adding to 2010091 its reverse (1900102), we get a palindrome (3910193).

The spelling of 2010091 in words is "two million, ten thousand, ninety-one".