540070009 has 2 divisors, whose sum is σ = 540070010. Its totient is φ = 540070008.

The previous prime is 540069989. The next prime is 540070051. The reversal of 540070009 is 900070045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308178025 + 231891984 = 17555^2 + 15228^2 .

It is a cyclic number.

It is not a de Polignac number, because 540070009 - 2¹³ = 540061817 is a prime.

It is a super-2 number, since 2×540070009² = 583351229242520162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (540070099) 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, 270035004 + 270035005.

It is an arithmetic number, because the mean of its divisors is an integer number (270035005).

Almost surely, 2^540070009 is an apocalyptic number.

It is an amenable number.

540070009 is a deficient number, since it is larger than the sum of its proper divisors (1).

540070009 is an equidigital number, since it uses as much as digits as its factorization.

540070009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 540070009 is about 23239.4063822637. The cubic root of 540070009 is about 814.3604748768.

The spelling of 540070009 in words is "five hundred forty million, seventy thousand, nine".