2540122873 has 4 divisors (see below), whose sum is σ = 2541235840. Its totient is φ = 2539009908.

The previous prime is 2540122859. The next prime is 2540122877. The reversal of 2540122873 is 3782210452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2540122873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540122877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553053 + ... + 557626.

It is an arithmetic number, because the mean of its divisors is an integer number (635308960).

Almost surely, 2^2540122873 is an apocalyptic number.

It is an amenable number.

2540122873 is a deficient number, since it is larger than the sum of its proper divisors (1112967).

2540122873 is a wasteful number, since it uses less digits than its factorization.

2540122873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112966.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2540122873 is about 50399.6316752414. The cubic root of 2540122873 is about 1364.4309905923.

The spelling of 2540122873 in words is "two billion, five hundred forty million, one hundred twenty-two thousand, eight hundred seventy-three".