2491583 has 6 divisors (see below), whose sum is σ = 2542344. Its totient is φ = 2441816.

The previous prime is 2491553. The next prime is 2491589. The reversal of 2491583 is 3851942.

2491583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2491583 - 2⁶ = 2491519 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 (2491589) 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 5 ways as a sum of consecutive naturals, for example, 2366 + ... + 3252.

It is an arithmetic number, because the mean of its divisors is an integer number (423724).

2^2491583 is an apocalyptic number.

2491583 is a deficient number, since it is larger than the sum of its proper divisors (50761).

2491583 is an frugal number, since it uses more digits than its factorization.

2491583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 940 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 2491583 is about 1578.4748968546. The cubic root of 2491583 is about 135.5683945507.

The spelling of 2491583 in words is "two million, four hundred ninety-one thousand, five hundred eighty-three".