540816191 has 2 divisors, whose sum is σ = 540816192. Its totient is φ = 540816190.

The previous prime is 540816163. The next prime is 540816239. The reversal of 540816191 is 191618045.

540816191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540816191 - 2²⁶ = 473707327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540816091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270408095 + 270408096.

It is an arithmetic number, because the mean of its divisors is an integer number (270408096).

Almost surely, 2^540816191 is an apocalyptic number.

540816191 is a deficient number, since it is larger than the sum of its proper divisors (1).

540816191 is an equidigital number, since it uses as much as digits as its factorization.

540816191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 540816191 is about 23255.4550804752. The cubic root of 540816191 is about 814.7353531186.

The spelling of 540816191 in words is "five hundred forty million, eight hundred sixteen thousand, one hundred ninety-one".