542144279 has 2 divisors, whose sum is σ = 542144280. Its totient is φ = 542144278.

The previous prime is 542144269. The next prime is 542144303. The reversal of 542144279 is 972441245.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542144279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542144249) 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, 271072139 + 271072140.

It is an arithmetic number, because the mean of its divisors is an integer number (271072140).

Almost surely, 2^542144279 is an apocalyptic number.

542144279 is a deficient number, since it is larger than the sum of its proper divisors (1).

542144279 is an equidigital number, since it uses as much as digits as its factorization.

542144279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 542144279 is about 23283.9919043106. The cubic root of 542144279 is about 815.4017259974.

The spelling of 542144279 in words is "five hundred forty-two million, one hundred forty-four thousand, two hundred seventy-nine".