2591331 has 8 divisors (see below), whose sum is σ = 3469584. Its totient is φ = 1720320.

The previous prime is 2591273. The next prime is 2591333. The reversal of 2591331 is 1331952.

It is a happy number.

2591331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2591331 - 2¹⁴ = 2574947 is a prime.

It is a super-2 number, since 2×2591331² = 13429992703122, which contains 22 as substring.

2591331 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2591333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 2451.

It is an arithmetic number, because the mean of its divisors is an integer number (433698).

2^2591331 is an apocalyptic number.

2591331 is a deficient number, since it is larger than the sum of its proper divisors (878253).

2591331 is a wasteful number, since it uses less digits than its factorization.

2591331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621.

The product of its digits is 810, while the sum is 24.

The square root of 2591331 is about 1609.7611624089. The cubic root of 2591331 is about 137.3538899749.

The spelling of 2591331 in words is "two million, five hundred ninety-one thousand, three hundred thirty-one".