2591311 has 6 divisors (see below), whose sum is σ = 2628536. Its totient is φ = 2554500.

The previous prime is 2591273. The next prime is 2591333. The reversal of 2591311 is 1131952.

It is a de Polignac number, because none of the positive numbers 2^k-2591311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17086 + ... + 17236.

2^2591311 is an apocalyptic number.

2591311 is a deficient number, since it is larger than the sum of its proper divisors (37225).

2591311 is an equidigital number, since it uses as much as digits as its factorization.

2591311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 282 counting only the distinct ones).

The product of its digits is 270, while the sum is 22.

The square root of 2591311 is about 1609.7549502952. The cubic root of 2591311 is about 137.3535366063.

The spelling of 2591311 in words is "two million, five hundred ninety-one thousand, three hundred eleven".