540155471 has 2 divisors, whose sum is σ = 540155472. Its totient is φ = 540155470.

The previous prime is 540155453. The next prime is 540155477. The reversal of 540155471 is 174551045.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540155471 is a prime.

It is a super-3 number, since 3×540155471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540155477) 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, 270077735 + 270077736.

It is an arithmetic number, because the mean of its divisors is an integer number (270077736).

Almost surely, 2^540155471 is an apocalyptic number.

540155471 is a deficient number, since it is larger than the sum of its proper divisors (1).

540155471 is an equidigital number, since it uses as much as digits as its factorization.

540155471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 540155471 is about 23241.2450397994. The cubic root of 540155471 is about 814.4034280761.

The spelling of 540155471 in words is "five hundred forty million, one hundred fifty-five thousand, four hundred seventy-one".