2540519 has 2 divisors, whose sum is σ = 2540520. Its totient is φ = 2540518.

The previous prime is 2540513. The next prime is 2540533. The reversal of 2540519 is 9150452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2540519 - 2¹² = 2536423 is a prime.

It is a super-3 number, since 3×2540519³ = 49191333581611855077, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270259 + 1270260.

It is an arithmetic number, because the mean of its divisors is an integer number (1270260).

2^2540519 is an apocalyptic number.

2540519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540519 is an equidigital number, since it uses as much as digits as its factorization.

2540519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2540519 is about 1593.9005615157. The cubic root of 2540519 is about 136.4501913652.

The spelling of 2540519 in words is "two million, five hundred forty thousand, five hundred nineteen".