540213439 has 2 divisors, whose sum is σ = 540213440. Its totient is φ = 540213438.

The previous prime is 540213413. The next prime is 540213451. The reversal of 540213439 is 934312045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540213439 - 2¹⁵ = 540180671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540213439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540213469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270106719 + 270106720.

It is an arithmetic number, because the mean of its divisors is an integer number (270106720).

Almost surely, 2^540213439 is an apocalyptic number.

540213439 is a deficient number, since it is larger than the sum of its proper divisors (1).

540213439 is an equidigital number, since it uses as much as digits as its factorization.

540213439 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 31.

The square root of 540213439 is about 23242.4920996007. The cubic root of 540213439 is about 814.4325602129.

The spelling of 540213439 in words is "five hundred forty million, two hundred thirteen thousand, four hundred thirty-nine".