540263304173 has 2 divisors, whose sum is σ = 540263304174. Its totient is φ = 540263304172.

The previous prime is 540263304157. The next prime is 540263304199. The reversal of 540263304173 is 371403362045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386463642244 + 153799661929 = 621662^2 + 392173^2 .

It is a cyclic number.

It is not a de Polignac number, because 540263304173 - 2⁴ = 540263304157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540263304143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270131652086 + 270131652087.

It is an arithmetic number, because the mean of its divisors is an integer number (270131652087).

Almost surely, 2^540263304173 is an apocalyptic number.

It is an amenable number.

540263304173 is a deficient number, since it is larger than the sum of its proper divisors (1).

540263304173 is an equidigital number, since it uses as much as digits as its factorization.

540263304173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 540263304173 in words is "five hundred forty billion, two hundred sixty-three million, three hundred four thousand, one hundred seventy-three".