2491459 has 4 divisors (see below), whose sum is σ = 2504304. Its totient is φ = 2478616.

The previous prime is 2491457. The next prime is 2491471. The reversal of 2491459 is 9541942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9541942 = 2 ⋅4770971.

It is a cyclic number.

It is not a de Polignac number, because 2491459 - 2¹ = 2491457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6127 + ... + 6520.

It is an arithmetic number, because the mean of its divisors is an integer number (626076).

2^2491459 is an apocalyptic number.

2491459 is a deficient number, since it is larger than the sum of its proper divisors (12845).

2491459 is a wasteful number, since it uses less digits than its factorization.

2491459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844.

The product of its digits is 12960, while the sum is 34.

The square root of 2491459 is about 1578.4356179458. The cubic root of 2491459 is about 135.5661455441.

The spelling of 2491459 in words is "two million, four hundred ninety-one thousand, four hundred fifty-nine".