540502849 has 2 divisors, whose sum is σ = 540502850. Its totient is φ = 540502848.

The previous prime is 540502847. The next prime is 540502871. The reversal of 540502849 is 948205045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289850625 + 250652224 = 17025^2 + 15832^2 .

It is a cyclic number.

It is not a de Polignac number, because 540502849 - 2¹ = 540502847 is a prime.

Together with 540502847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (540502847) 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 as a sum of consecutive naturals, namely, 270251424 + 270251425.

It is an arithmetic number, because the mean of its divisors is an integer number (270251425).

Almost surely, 2^540502849 is an apocalyptic number.

It is an amenable number.

540502849 is a deficient number, since it is larger than the sum of its proper divisors (1).

540502849 is an equidigital number, since it uses as much as digits as its factorization.

540502849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 540502849 is about 23248.7171474041. The cubic root of 540502849 is about 814.5779736311.

The spelling of 540502849 in words is "five hundred forty million, five hundred two thousand, eight hundred forty-nine".