2091313 has 4 divisors (see below), whose sum is σ = 2390080. Its totient is φ = 1792548.

The previous prime is 2091301. The next prime is 2091317. The reversal of 2091313 is 3131902.

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 2091313 - 2⁵ = 2091281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2091317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149373 + ... + 149386.

It is an arithmetic number, because the mean of its divisors is an integer number (597520).

2^2091313 is an apocalyptic number.

It is an amenable number.

2091313 is a deficient number, since it is larger than the sum of its proper divisors (298767).

2091313 is an equidigital number, since it uses as much as digits as its factorization.

2091313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298766.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 2091313 is about 1446.1372687266. The cubic root of 2091313 is about 127.8810948185.

The spelling of 2091313 in words is "two million, ninety-one thousand, three hundred thirteen".