540548761 has 2 divisors, whose sum is σ = 540548762. Its totient is φ = 540548760.

The previous prime is 540548753. The next prime is 540548791. The reversal of 540548761 is 167845045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540283536 + 265225 = 23244^2 + 515^2 .

It is a cyclic number.

It is not a de Polignac number, because 540548761 - 2³ = 540548753 is a prime.

It is a Chen prime.

It is equal to p_28375681 and since 540548761 and 28375681 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (540548791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270274380 + 270274381.

It is an arithmetic number, because the mean of its divisors is an integer number (270274381).

Almost surely, 2^540548761 is an apocalyptic number.

It is an amenable number.

540548761 is a deficient number, since it is larger than the sum of its proper divisors (1).

540548761 is an equidigital number, since it uses as much as digits as its factorization.

540548761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 540548761 is about 23249.7045357570. The cubic root of 540548761 is about 814.6010372438.

The spelling of 540548761 in words is "five hundred forty million, five hundred forty-eight thousand, seven hundred sixty-one".