2540723 has 2 divisors, whose sum is σ = 2540724. Its totient is φ = 2540722.

The previous prime is 2540693. The next prime is 2540743. The reversal of 2540723 is 3270452.

2540723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2540723 - 2¹⁰ = 2539699 is a prime.

It is not a weakly prime, because it can be changed into another prime (2540743) 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, 1270361 + 1270362.

It is an arithmetic number, because the mean of its divisors is an integer number (1270362).

2^2540723 is an apocalyptic number.

2540723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540723 is an equidigital number, since it uses as much as digits as its factorization.

2540723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2540723 is about 1593.9645541856. The cubic root of 2540723 is about 136.4538435185.

The spelling of 2540723 in words is "two million, five hundred forty thousand, seven hundred twenty-three".