2491259 has 2 divisors, whose sum is σ = 2491260. Its totient is φ = 2491258.

The previous prime is 2491243. The next prime is 2491289. The reversal of 2491259 is 9521942.

2491259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2491259 - 2⁴ = 2491243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2491289) 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 as a sum of consecutive naturals, namely, 1245629 + 1245630.

It is an arithmetic number, because the mean of its divisors is an integer number (1245630).

2^2491259 is an apocalyptic number.

2491259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491259 is an equidigital number, since it uses as much as digits as its factorization.

2491259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 2491259 is about 1578.3722628075. The cubic root of 2491259 is about 135.5625179569.

The spelling of 2491259 in words is "two million, four hundred ninety-one thousand, two hundred fifty-nine".