2540163 has 4 divisors (see below), whose sum is σ = 3386888. Its totient is φ = 1693440.

The previous prime is 2540141. The next prime is 2540173. The reversal of 2540163 is 3610452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2540163 - 2⁶ = 2540099 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540113) 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, 423358 + ... + 423363.

It is an arithmetic number, because the mean of its divisors is an integer number (846722).

2^2540163 is an apocalyptic number.

2540163 is a deficient number, since it is larger than the sum of its proper divisors (846725).

2540163 is an equidigital number, since it uses as much as digits as its factorization.

2540163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846724.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2540163 is about 1593.7888818787. The cubic root of 2540163 is about 136.4438175315.

The spelling of 2540163 in words is "two million, five hundred forty thousand, one hundred sixty-three".