2540841531 has 4 divisors (see below), whose sum is σ = 3387788712. Its totient is φ = 1693894352.

The previous prime is 2540841503. The next prime is 2540841553. The reversal of 2540841531 is 1351480452.

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 2540841531 - 2¹⁸ = 2540579387 is a prime.

It is a super-2 number, since 2×2540841531² = 12911751371308847922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2540841492 and 2540841501.

It is not an unprimeable number, because it can be changed into a prime (2540841031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423473586 + ... + 423473591.

It is an arithmetic number, because the mean of its divisors is an integer number (846947178).

Almost surely, 2^2540841531 is an apocalyptic number.

2540841531 is a deficient number, since it is larger than the sum of its proper divisors (846947181).

2540841531 is an equidigital number, since it uses as much as digits as its factorization.

2540841531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846947180.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2540841531 is about 50406.7607667860. The cubic root of 2540841531 is about 1364.5596545502.

The spelling of 2540841531 in words is "two billion, five hundred forty million, eight hundred forty-one thousand, five hundred thirty-one".