540304139 has 2 divisors, whose sum is σ = 540304140. Its totient is φ = 540304138.

The previous prime is 540304103. The next prime is 540304153. The reversal of 540304139 is 931403045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540304139 - 2²⁸ = 271868683 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (540304939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270152069 + 270152070.

It is an arithmetic number, because the mean of its divisors is an integer number (270152070).

Almost surely, 2^540304139 is an apocalyptic number.

540304139 is a deficient number, since it is larger than the sum of its proper divisors (1).

540304139 is an equidigital number, since it uses as much as digits as its factorization.

540304139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 540304139 is about 23244.4431854153. The cubic root of 540304139 is about 814.4781378150.

The spelling of 540304139 in words is "five hundred forty million, three hundred four thousand, one hundred thirty-nine".