540041312309 has 2 divisors, whose sum is σ = 540041312310. Its totient is φ = 540041312308.

The previous prime is 540041312303. The next prime is 540041312333. The reversal of 540041312309 is 903213140045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413838749809 + 126202562500 = 643303^2 + 355250^2 .

It is a cyclic number.

It is not a de Polignac number, because 540041312309 - 2²⁰ = 540040263733 is a prime.

It is a super-2 number, since 2×540041312309² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540041312303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270020656154 + 270020656155.

It is an arithmetic number, because the mean of its divisors is an integer number (270020656155).

Almost surely, 2^540041312309 is an apocalyptic number.

It is an amenable number.

540041312309 is a deficient number, since it is larger than the sum of its proper divisors (1).

540041312309 is an equidigital number, since it uses as much as digits as its factorization.

540041312309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 540041312309 in words is "five hundred forty billion, forty-one million, three hundred twelve thousand, three hundred nine".