540452249 has 2 divisors, whose sum is σ = 540452250. Its totient is φ = 540452248.

The previous prime is 540452177. The next prime is 540452267. The reversal of 540452249 is 942254045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463627024 + 76825225 = 21532^2 + 8765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540452249 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (540452279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270226124 + 270226125.

It is an arithmetic number, because the mean of its divisors is an integer number (270226125).

Almost surely, 2^540452249 is an apocalyptic number.

It is an amenable number.

540452249 is a deficient number, since it is larger than the sum of its proper divisors (1).

540452249 is an equidigital number, since it uses as much as digits as its factorization.

540452249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 540452249 is about 23247.6288898459. The cubic root of 540452249 is about 814.5525535173.

The spelling of 540452249 in words is "five hundred forty million, four hundred fifty-two thousand, two hundred forty-nine".