2540351 has 4 divisors (see below), whose sum is σ = 2771304. Its totient is φ = 2309400.

The previous prime is 2540341. The next prime is 2540389. The reversal of 2540351 is 1530452.

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

It is a cyclic number.

It is not a de Polignac number, because 2540351 - 2¹⁴ = 2523967 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540341) 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 in 3 ways as a sum of consecutive naturals, for example, 115460 + ... + 115481.

It is an arithmetic number, because the mean of its divisors is an integer number (692826).

2^2540351 is an apocalyptic number.

2540351 is a deficient number, since it is larger than the sum of its proper divisors (230953).

2540351 is a wasteful number, since it uses less digits than its factorization.

2540351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230952.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2540351 is about 1593.8478597407. The cubic root of 2540351 is about 136.4471835628.

The spelling of 2540351 in words is "two million, five hundred forty thousand, three hundred fifty-one".