2491283 has 4 divisors (see below), whose sum is σ = 2552088. Its totient is φ = 2430480.

The previous prime is 2491259. The next prime is 2491289. The reversal of 2491283 is 3821942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3821942 = 2 ⋅1910971.

It is a de Polignac number, because none of the positive numbers 2^k-2491283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491289) 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, 30341 + ... + 30422.

It is an arithmetic number, because the mean of its divisors is an integer number (638022).

2^2491283 is an apocalyptic number.

2491283 is a deficient number, since it is larger than the sum of its proper divisors (60805).

2491283 is an equidigital number, since it uses as much as digits as its factorization.

2491283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60804.

The product of its digits is 3456, while the sum is 29.

The square root of 2491283 is about 1578.3798655584. The cubic root of 2491283 is about 135.5629532776.

The spelling of 2491283 in words is "two million, four hundred ninety-one thousand, two hundred eighty-three".