540152549 has 2 divisors, whose sum is σ = 540152550. Its totient is φ = 540152548.

The previous prime is 540152513. The next prime is 540152567. The reversal of 540152549 is 945251045.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 279491524 + 260661025 = 16718^2 + 16145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540152549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540157549) 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, 270076274 + 270076275.

It is an arithmetic number, because the mean of its divisors is an integer number (270076275).

Almost surely, 2^540152549 is an apocalyptic number.

It is an amenable number.

540152549 is a deficient number, since it is larger than the sum of its proper divisors (1).

540152549 is an equidigital number, since it uses as much as digits as its factorization.

540152549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 540152549 is about 23241.1821773334. The cubic root of 540152549 is about 814.4019595538.

The spelling of 540152549 in words is "five hundred forty million, one hundred fifty-two thousand, five hundred forty-nine".